x86: include/asm-x86/string_32.h - style only

Looked at this file because of __memcpy warnings.
Thought it could use a style/checkpatch cleanup.

No change in vmlinux.

[tglx: fixed the remaining issues ]

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>