Testing memcmp and memcpy from TF-A libc

Removing previously used c-picker based tests and fully testing memcmp
and memcpy functions from the TF-A libc by linking them directly to the
test binary.

Change-Id: Ic343094603a563beda43ccda737d0e6f89f254e4
Signed-off-by: Imre Kis <imre.kis@arm.com>
5 files changed