ARM: OMAP5: PRM/CM: Cleanup unused header

Cleanup unused parts of the PRM and CM regbit headers leaving only whats
used.

prm-regbits-54xx.h was found to be completely unused and
hence removed.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

arch/arm/mach-omap2/omap_hwmod_54xx_data.c

@@ -32,7 +32,6 @@
 #include "cm1_54xx.h"
 #include "cm2_54xx.h"
 #include "prm54xx.h"
-#include "prm-regbits-54xx.h"
 #include "i2c.h"
 #include "mmc.h"
 #include "wd_timer.h"

arch/arm/mach-omap2/powerdomains54xx_data.c

@@ -25,7 +25,6 @@
 
 #include "prcm-common.h"
 #include "prcm44xx.h"
-#include "prm-regbits-54xx.h"
 #include "prm54xx.h"
 #include "prcm_mpu54xx.h"