i386: fix argument signedness warnings

These build warnings:

In file included from include/asm/thread_info.h:16,
from include/linux/thread_info.h:21,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:49,
from include/linux/vmalloc.h:4,
from arch/i386/boot/compressed/misc.c:14:
include/asm/processor.h: In function cpuid_count
include/asm/processor.h:615: warning: pointer targets in passing argument 1 of native_cpuid differ in signedness
include/asm/processor.h:615: warning: pointer targets in passing argument 2 of native_cpuid differ in signedness
include/asm/processor.h:615: warning: pointer targets in passing argument 3 of native_cpuid differ in signedness
include/asm/processor.h:615: warning: pointer targets in passing argument 4 of native_cpuid differ in signedness

come because the arguments have been specified as pointers to (signed) int
types, not unsigned. So let's specify those as unsigned. Do some codingstyle
here and there while at it.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>