Add a QA test to the SDK to test that a basic cargo build works.
[RP: Tweaked to work for multilibs and updated to match toolchain changes]
(From OE-Core rev: d0cfe587bc897e79ef01805cc9a42fbca28c883c)
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
