mm/page_alloc.c: fix coding style and spelling
mm/page_alloc.c: fix coding style and spelling

Fix all errors reported by checkpatch and some small spelling mistakes.

Signed-off-by: Pintu Kumar <50bb2d74b059ecf8edae2cae63872cdcf4a1d338@samsung.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs