configs: add UNIT_TESTS to big-endian Malta boards

We currently only run the unit tests on low-endian boards.
We should run them on big-endian, too.

Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2 files changed