selftest/x86: build both bitnesses
selftest/x86: build both bitnesses

Using uname with the processor flag option in some cases can yield 'unknown'
so lets use the machine flag option as it is deterministic. Add a dependency
for all_32 when building on a x86 64 bit host so that both bitnesses are
built in this case.

Cc: Andy Lutomirski <2cc0d0d76de2e6f37b92deeb83c85cb306fc5dc1@amacapital.net>
Acked-by: Andy Lutomirski <2cc0d0d76de2e6f37b92deeb83c85cb306fc5dc1@kernel.org>
Signed-off-by: Tyler Baker <b3cc311ecf91e7c5c184946246e38d36003af74d@linaro.org>
Signed-off-by: Shuah Khan <c62751f8c6ce7eb0639cab80a821801931863a4b@osg.samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs