Updates for the pre-commit hook

.pre-commit-config.yaml
-----------------------
  o Add more hooks

bin/setup.sh
makefiles/commands/kail/godownloader.sh
---------------------------------------
  o Shellcheck cleanups

install/README.md
-----------------
  o Add a project copyright notice.

makefiles/.../*.mk
------------------
  o Update copyright notice.
  o Replace legacy var $(ONF_MAKEDIR) with onf-mk-dir=

makefiles/virtualenv/include.mk
-------------------------------
  o Fixed a small problem with targets clean & sterile.
  o Clean target should remove

Change-Id: If624531f4d38aaacc200d3c49aee2c3804122ffb
Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
diff --git a/makefiles/virtualenv/include.mk b/makefiles/virtualenv/include.mk
index 052f959..1c3d368 100644
--- a/makefiles/virtualenv/include.mk
+++ b/makefiles/virtualenv/include.mk
@@ -136,6 +136,7 @@
 
 ## -----------------------------------------------------------------------
 ## -----------------------------------------------------------------------
+.PHONY: venv-help
 venv-help ::
 	@printf '  %-33.33s %s\n' 'venv-patched' \
 	  'venv patched for v3.10.6+ use'