arch/mips: Make MIPS specific options depend on ARCH_MIPS

Also don't define the default as this result in spurious lines in the
.config.

TEST: The generated config.h remain exactly the same for all boards.

Change-Id: I7f35a5a9dcbc7b25b7806056e2b8e822fa94e428
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31312
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Martin Roth <martinroth@google.com>

0 files changed, 0 insertions, 0 deletions