power/reset: brcmstb: Make the driver buildable on MIPS

Now that the driver doesn't use any ARM-specific headers, it is safe
to build on MIPS or with COMPILE_TEST.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
1 file changed