[VOL-5064] - Build and deploy voltha-system-tests

makefiles/
----------
  o Copy in latest library makefiles from repo:onf-make

config.mk
makefiles/lint
--------------
  o Support more lint targets

makefiles/virtualenv.mk
-----------------------
  o Update to use library logic.
  o Install/maintain .venv/ VS vst_venv.
  o Proper dependency driven create when needed VS always install.
  o Also support replacing inlined venv logic with library makefile logs.

makefiles/commands/kail.mk
--------------------------
  o mkdir -p for interactive use when WORKSPACE= is set.

Makefile
--------
  o Inline comment delimiters and help targets to improve readabilty.
  o Call macro banner-enter/banner-leave to hilight target output.
  o Change targets clean and help into double-colon rules so they
    are included when library targets are processed.
  o Update include $(MAKEDIR) imports, library makefiles are able to infer paths
    and define MAKDIR=, ONF_MAKEDIR=.
  o Define helper macro run-robot-test= allowing copy & paste robot command
    line to be refactored and reduced.
  o Define local target 'venv-install' allowing installation of the virtualenv
    followed by patching so a newer interpreter can be used locally for testing.
  o Shell command separator: replace ';' with '&&' to improve error detection.
  o target=gendocs: Split run-on command line into independent steps, activate
    script only applies to the for loop invoking tests.

Change-Id: Idc8efd89f36b9f4954d9394a6524e07aa2ea5531
diff --git a/makefiles/lint/python/include.mk b/makefiles/lint/python/include.mk
index b052d84..57dfd8b 100644
--- a/makefiles/lint/python/include.mk
+++ b/makefiles/lint/python/include.mk
@@ -15,31 +15,17 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
-ifndef mk-include--onf-lint-python#       # one-time loader
-
 $(if $(DEBUG),$(warning ENTER))
 
-## -----------------------------------------------------------------------
-## Intent: Display early so lint targets are grouped
-## -----------------------------------------------------------------------
-help ::
-#	@echo
-#	@echo '[PYTHON]'
-	@echo '  lint-python         Syntax check python sources (*.py)'
-#	@echo '  help-lint-python-flake8'
-#	@echo '  help-lint-python-pylint'
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+$(if $(UNSTABLE),$(eval lint-python-all := true))
 
-## -----------------------------------------------------------------------
-## -----------------------------------------------------------------------
-  ifndef NO-LINT-PYTHON
-    include $(ONF_MAKEDIR)/lint/python/flake8.mk
-    include $(ONF_MAKEDIR)/lint/python/pylint.mk
-  endif
-
-  mk-include--onf-lint-python := true
+include $(ONF_MAKEDIR)/lint/python/find_utils.mk
+include $(ONF_MAKEDIR)/lint/python/flake8.mk
+include $(ONF_MAKEDIR)/lint/python/pylint.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
-endif # mk-include--onf-lint-license
-
 # [EOF]