Right now, OVERRIDES dependency variables set using ??=, e.g. TARGET_ARCH
in OE-Core don't have their dependencies tracked. This is a bug, fix it.
(Bitbake rev: 944734503768f9e9223ef041f2d7873455418a54)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>