ARM: SAMSUNG: local regs-srom header in mach-exynos

This patch moves regs-srom header file into mach-exynos.
Because it is not used for others except mach-exynos.

Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/mach-exynos/suspend.c

@@ -32,11 +32,11 @@
 #include <asm/suspend.h>
 
 #include <plat/pm-common.h>
-#include <plat/regs-srom.h>
 
 #include "common.h"
-#include "regs-pmu.h"
 #include "exynos-pmu.h"
+#include "regs-pmu.h"
+#include "regs-srom.h"
 
 #define REG_TABLE_END (-1U)