The existing directories are needed for stage building (a part of the
Gentoo build process). Normally these directories are empty, but there
are times where overrides need to be defined. This commit handles
existing overrides for keywords. For historical reasons the overrides
were able to be put in different files and directories, this
centralizes them.
This also updates the version of openssl/cryptography that works with
or without bindist.
Change-Id: I62c934ed305a711a4a9a3ef01fa55ad142aebb78
This is intended to eventually support building musl-libc based images,
which need the musl overlay.
Change-Id: I8f5429ffa64e74c860772d9a00ff0b7eebb7721a
