These two tests are designed to exercise the buildtools-tarball.
SanityTests simply verifies that inside the SDK, some commands are used
from the SDK.
BuildTests creates a new OE build directory and builds virtual/libc to
verify that a basic build works correctly. DL_DIR is reused to avoid
needless downloading, but sstate is not shared to ensure a build does
happen.
Signed-off-by: Ross Burton <ross.burton@arm.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
