ARM: EXYNOS: Cleanup header files inclusion

This includes trivial cleanup in exynos files such as
 - remove unused header files inclusion from exynos.c, s5p-dev-mfc.c,
   firmware.c, pm.c.
 - move inclusion of of.h from common.h to pm.c where it is really
   required

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

arch/arm/mach-exynos/common.h

@@ -12,7 +12,6 @@
 #ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H
 #define __ARCH_ARM_MACH_EXYNOS_COMMON_H
 
-#include <linux/of.h>
 #include <linux/platform_data/cpuidle-exynos.h>
 
 #define EXYNOS3250_SOC_ID	0xE3472000

arch/arm/mach-exynos/exynos.c

@@ -11,14 +11,11 @@
 
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/serial_s3c.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
-#include <linux/pm_domain.h>
 #include <linux/irqchip.h>
 #include <linux/soc/samsung/exynos-regs-pmu.h>
 
@@ -26,7 +23,6 @@
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
-#include <asm/memory.h>
 
 #include <mach/map.h>
 

arch/arm/mach-exynos/firmware.c

@@ -20,8 +20,6 @@
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/suspend.h>
 
-#include <mach/map.h>
-
 #include "common.h"
 #include "smc.h"
 

arch/arm/mach-exynos/platsmp.c

@@ -15,7 +15,6 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
-#include <linux/device.h>
 #include <linux/jiffies.h>
 #include <linux/smp.h>
 #include <linux/io.h>

arch/arm/mach-exynos/pm.c

@@ -17,7 +17,7 @@
 #include <linux/suspend.h>
 #include <linux/cpu_pm.h>
 #include <linux/io.h>
-#include <linux/err.h>
+#include <linux/of.h>
 #include <linux/soc/samsung/exynos-regs-pmu.h>
 #include <linux/soc/samsung/exynos-pmu.h>
 
@@ -28,8 +28,6 @@
 
 #include <mach/map.h>
 
-#include <plat/pm-common.h>
-
 #include "common.h"
 
 static inline void __iomem *exynos_boot_vector_addr(void)

arch/arm/mach-exynos/s5p-dev-mfc.c

@@ -9,7 +9,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/memblock.h>