feat(build): manage patch version in Makefile

Add VERSION_PATCH macro in Makefile. This will help LTS releases.
While at it, handle VERSION_PATCH macro in .versionrc.js script.

Change-Id: Id3ec359f7768a90ba5c67e35d29736a46eb402b5
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2 files changed