[VOL-5321] - Add repo:onf-make as a git submodule.

Makefile
lf/transition.mk
----------------
  o Add bridge logic to conditionally load legacy makefiles or repo:onf-make.
  o transition.mk allows logic to gradually be replaced.
  o makefiles/ directory can eventually be removed after all
    dependencies on local makefile logic have been removed.

makefiles/
----------
  o Replace make var(s) ONF_MAKEDIR= and ONF_MAKE= with var legacy-mk=.

makefiles/commands/include.mk
makefiles/commands/kail/godownloader.sh
---------------------------------------
  o Replace loading legacy kail logic with library makefiles.
  o Git submodule scripts contain linting cleanup for scripts.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I152251039fc3b330ed1a6729922e465c53d00879
diff --git a/makefiles/lint/include.mk b/makefiles/lint/include.mk
index 2102fc9..f21af76 100644
--- a/makefiles/lint/include.mk
+++ b/makefiles/lint/include.mk
@@ -36,17 +36,17 @@
 #   NO-LINT-PYLINT := true
 # endif
 
-include $(ONF_MAKEDIR)/lint/groovy.mk
-include $(ONF_MAKEDIR)/lint/jjb.mk
-include $(ONF_MAKEDIR)/lint/json.mk
-include $(ONF_MAKEDIR)/lint/license/include.mk
-include $(ONF_MAKEDIR)/lint/makefile.mk
-include $(ONF_MAKEDIR)/lint/python/include.mk
-include $(ONF_MAKEDIR)/lint/shellcheck/include.mk
-include $(ONF_MAKEDIR)/lint/tox/include.mk
-include $(ONF_MAKEDIR)/lint/yaml/include.mk
+include $(legacy-mk)/lint/groovy.mk
+include $(legacy-mk)/lint/jjb.mk
+include $(legacy-mk)/lint/json.mk
+include $(legacy-mk)/lint/license/include.mk
+include $(legacy-mk)/lint/makefile.mk
+include $(legacy-mk)/lint/python/include.mk
+include $(legacy-mk)/lint/shellcheck/include.mk
+include $(legacy-mk)/lint/tox/include.mk
+include $(legacy-mk)/lint/yaml/include.mk
 
-include $(ONF_MAKEDIR)/lint/help.mk
+include $(legacy-mk)/lint/help.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
diff --git a/makefiles/lint/include.mk.bk b/makefiles/lint/include.mk.bk
index dbc2e8b..709c32a 100644
--- a/makefiles/lint/include.mk.bk
+++ b/makefiles/lint/include.mk.bk
@@ -9,14 +9,14 @@
 	@echo
 	@echo "[LINT]"
 
-include $(ONF_MAKE)/lint/makefile.mk
-include $(ONF_MAKE)/lint/python.mk
-include $(ONF_MAKE)/lint/shell.mk
+include $(legacy-mk)/lint/makefile.mk
+include $(legacy-mk)/lint/python.mk
+include $(legacy-mk)/lint/shell.mk
 
 ifdef YAML_FILES
-  include $(ONF_MAKE)/lint/yaml/python.mk
+  include $(legacy-mk)/lint/yaml/python.mk
 else
-  include $(ONF_MAKE)/lint/yaml/yamllint.mk
+  include $(legacy-mk)/lint/yaml/yamllint.mk
 endif
 
 $(if $(DEBUG),$(warning LEAVE))
diff --git a/makefiles/lint/python/include.mk b/makefiles/lint/python/include.mk
index 29b4e84..5944bbf 100644
--- a/makefiles/lint/python/include.mk
+++ b/makefiles/lint/python/include.mk
@@ -22,9 +22,9 @@
 ##-------------------##
 $(if $(UNSTABLE),$(eval lint-python-all := true))
 
-include $(ONF_MAKEDIR)/lint/python/find_utils.mk
-include $(ONF_MAKEDIR)/lint/python/flake8.mk
-include $(ONF_MAKEDIR)/lint/python/pylint.mk
+include $(legacy-mk)/lint/python/find_utils.mk
+include $(legacy-mk)/lint/python/flake8.mk
+include $(legacy-mk)/lint/python/pylint.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
diff --git a/makefiles/lint/shellcheck/include.mk b/makefiles/lint/shellcheck/include.mk
index 329ce8d..5d7309b 100644
--- a/makefiles/lint/shellcheck/include.mk
+++ b/makefiles/lint/shellcheck/include.mk
@@ -22,11 +22,11 @@
 ##--------------------##
 ##---]  INCLUDES  [---##
 ##--------------------##
-# include $(ONF_MAKEDIR)/lint/shellcheck/help.mk
-include $(ONF_MAKEDIR)/lint/shellcheck/find_utils.mk
+# include $(legacy-mk)/lint/shellcheck/help.mk
+include $(legacy-mk)/lint/shellcheck/find_utils.mk
 
 # Standard lint-yaml targets
-include $(ONF_MAKEDIR)/lint/shellcheck/shellcheck.mk
+include $(legacy-mk)/lint/shellcheck/shellcheck.mk
 
 mk-include--onf-lint-shellcheck := true#        # Flag to inhibit re-including
 
diff --git a/makefiles/lint/tox/include.mk b/makefiles/lint/tox/include.mk
index 29dfc8c..ba10793 100644
--- a/makefiles/lint/tox/include.mk
+++ b/makefiles/lint/tox/include.mk
@@ -20,7 +20,7 @@
 
 $(if $(DEBUG),$(warning ENTER))
 
-include $(ONF_MAKEDIR)/lint/tox/tox.mk
+include $(legacy-mk)/lint/tox/tox.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
diff --git a/makefiles/lint/yaml/byrepo/voltha-lib-go/include.mk b/makefiles/lint/yaml/byrepo/voltha-lib-go/include.mk
index b618f6a..ad13c8e 100644
--- a/makefiles/lint/yaml/byrepo/voltha-lib-go/include.mk
+++ b/makefiles/lint/yaml/byrepo/voltha-lib-go/include.mk
@@ -20,7 +20,7 @@
 ##--------------------##
 ##---]  INCLUDES  [---##
 ##--------------------##
-include $(ONF_MAKEDIR)/lint/yaml/byrepo/$(--repo-name--)/yamllint.mk
+include $(legacy-mk)/lint/yaml/byrepo/$(--repo-name--)/yamllint.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
diff --git a/makefiles/lint/yaml/byrepo/voltha-lib-go/yamllint.mk b/makefiles/lint/yaml/byrepo/voltha-lib-go/yamllint.mk
index 575c299..76ceb1a 100644
--- a/makefiles/lint/yaml/byrepo/voltha-lib-go/yamllint.mk
+++ b/makefiles/lint/yaml/byrepo/voltha-lib-go/yamllint.mk
@@ -31,7 +31,7 @@
 ## Add requirement(s) for checking
 ## -------------------------------
 yamllint-cfg  := yamllint.helm
-yamllint-conf = $(wildcard $(yamllint-cfg) $(ONF_MAKEDIR)/lint/yaml/$(yamllint-cfg))
+yamllint-conf = $(wildcard $(yamllint-cfg) $(legacy-mk)/lint/yaml/$(yamllint-cfg))
 yamllint-args += $(addprefix --config-file$(space),$(yamllint-conf))
 yamllint-args += --strict
 
diff --git a/makefiles/lint/yaml/include.mk b/makefiles/lint/yaml/include.mk
index 2c9011c..62bfb30 100644
--- a/makefiles/lint/yaml/include.mk
+++ b/makefiles/lint/yaml/include.mk
@@ -22,16 +22,16 @@
 ##--------------------##
 ##---]  INCLUDES  [---##
 ##--------------------##
-include $(ONF_MAKEDIR)/lint/yaml/help.mk
-include $(ONF_MAKEDIR)/lint/yaml/find_utils.mk
-include $(ONF_MAKEDIR)/lint/yaml/install.mk
+include $(legacy-mk)/lint/yaml/help.mk
+include $(legacy-mk)/lint/yaml/find_utils.mk
+include $(legacy-mk)/lint/yaml/install.mk
 
 # [TODO] Consolidate and refactor to support a simpler answer
 # Special snowflake linting requirements
--include $(ONF_MAKEDIR)/lint/yaml/byrepo/$(--repo-name--)/include.mk
+-include $(legacy-mk)/lint/yaml/byrepo/$(--repo-name--)/include.mk
 
 # Standard lint-yaml targets
-include $(ONF_MAKEDIR)/lint/yaml/yamllint.mk
+include $(legacy-mk)/lint/yaml/yamllint.mk
 
 --onf-mk-lint-yaml-- := true#        # Flag to inhibit re-including