[ARM] pxa: removed mostly unused and confusing two sharpsl.h

Only a small part of used code is moved into sharpsl_pm.h.

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/sharpsl_pm.c

@@ -29,11 +29,8 @@
 #include <mach/pm.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/regs-rtc.h>
-#include <mach/sharpsl.h>
 #include <mach/sharpsl_pm.h>
 
-#include "sharpsl.h"
-
 /*
  * Constants
  */