VOL-5358 - Build & test on the new AMI image

.gitmodules
lf/
lf/include.mk
lf/onf-make
lf/README.md
-------------
  o Add repo:onf-make as a git submodule for the repository.
  o include.mk contains generic path macros and logic used to
    recursively checkout git submodules when needed.

config.mk -> lf/config.mk
-------------------------
  o Re-home config.mk
  o Update contents to cover all flags supported by repo:onf-make.
  o config.mk manually enables/disables linting targets and makefile logic.

lf/bridge.mk
------------
  o Temporary transition makefile.
  o This makefile helps break dependencies on makefiles/* so includes
    can transition to library makefiles in repo:onf-make.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I9d499d5624f40366384dc4912aa4465ca7a4b8bb
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..0b23d6f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lf/onf-make"]
+	path = lf/onf-make
+	url = https://gerrit.opencord.org/onf-make