We're seeing problems due to the way x86-64 is handled (or not handled)
as an override. Relax the containts on overrides from being lowercase
to being lowercase or numeric. This fixes problem where MACHINE=qemux86
would work but MACHINE=qemux86-64 would fail the same tests.
(Bitbake rev: 3a3be518536acc868c7eeb3c1111ad1b321480b7)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>