i386: es7000 minor cleanups

This patch contains the following cleanups:
- make some needlessly global functions static
- #if 0 the unused es7000_stop_cpu()

AK: actually removed es7000_stop_cpu
AK: fixed a non ISO prototype too

[ tglx: arch/x86 adaptation ]

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.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>