OMAP: voltage: move plat/voltage.h to mach-omap2/voltage.h

At this point in time, there's no reason for this header file to be in
plat-omap/include/plat/voltage.h.  It should not be included by device
drivers, and the code that uses it is currently all under mach-omap2/.
Signed-off-by: Paul Walmsley <paul@pwsan.com>

arch/arm/mach-omap2/omap_twl.c

@@ -18,7 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/i2c/twl.h>
 
-#include <plat/voltage.h>
+#include "voltage.h"
 
 #include "pm.h"
 

arch/arm/mach-omap2/pm.c

@@ -18,8 +18,8 @@
 #include <plat/omap-pm.h>
 #include <plat/omap_device.h>
 #include <plat/common.h>
-#include <plat/voltage.h>
 
+#include "voltage.h"
 #include "powerdomain.h"
 #include "clockdomain.h"
 #include "pm.h"

arch/arm/mach-omap2/smartreflex.h

@@ -21,7 +21,8 @@
 #define __ASM_ARM_OMAP_SMARTREFLEX_H
 
 #include <linux/platform_device.h>
-#include <plat/voltage.h>
+
+#include "voltage.h"
 
 /*
  * Different Smartreflex IPs version. The v1 is the 65nm version used in

arch/arm/mach-omap2/sr_device.c

@@ -23,9 +23,9 @@
 #include <linux/io.h>
 
 #include <plat/omap_device.h>
-#include <plat/voltage.h>
 
 #include "smartreflex.h"
+#include "voltage.h"
 #include "control.h"
 #include "pm.h"
 

arch/arm/mach-omap2/voltage.c

@@ -26,7 +26,6 @@
 #include <linux/slab.h>
 
 #include <plat/common.h>
-#include <plat/voltage.h>
 
 #include "prm-regbits-34xx.h"
 #include "prm-regbits-44xx.h"
@@ -35,6 +34,8 @@
 #include "prminst44xx.h"
 #include "control.h"
 
+#include "voltage.h"
+
 #define VP_IDLE_TIMEOUT		200
 #define VP_TRANXDONE_TIMEOUT	300
 #define VOLTAGE_DIR_SIZE	16

arch/arm/plat-omap/include/plat/omap_hwmod.h

@@ -34,7 +34,6 @@
 #include <linux/ioport.h>
 #include <linux/spinlock.h>
 #include <plat/cpu.h>
-#include <plat/voltage.h>
 
 struct omap_device;