MIPS: Whitespace cleanups and reformatting.

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <sjhill@mips.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4781/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>