MAINTAINERS: Add entry for drivers/platform/mips/

Add drivers/platform/mips to the MIPS architecture MAINTAINERS entry.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
[jhogan@kernel.org: Expand commit message]
Signed-off-by: James Hogan <jhogan@kernel.org>
1 file changed