ARM: OMAP4/5: Make OMAPx_SRAM_SCRATCH_ defines common

These defines are same across OMAP4/5. So move them to
omap_common.h. This is required for the patches that
follow.

Signed-off-by: Sricharan R <r.sricharan@ti.com>
diff --git a/arch/arm/cpu/armv7/omap5/emif.c b/arch/arm/cpu/armv7/omap5/emif.c
index 3f37abd..b4c1319 100644
--- a/arch/arm/cpu/armv7/omap5/emif.c
+++ b/arch/arm/cpu/armv7/omap5/emif.c
@@ -32,8 +32,8 @@
 
 #ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
 #define print_timing_reg(reg) debug(#reg" - 0x%08x\n", (reg))
-static u32 *const T_num = (u32 *)OMAP5_SRAM_SCRATCH_EMIF_T_NUM;
-static u32 *const T_den = (u32 *)OMAP5_SRAM_SCRATCH_EMIF_T_DEN;
+static u32 *const T_num = (u32 *)OMAP_SRAM_SCRATCH_EMIF_T_NUM;
+static u32 *const T_den = (u32 *)OMAP_SRAM_SCRATCH_EMIF_T_DEN;
 #endif
 
 #ifdef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 5698876..604fa42 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -41,7 +41,7 @@
 struct vcores_data const **omap_vcores =
 		(struct vcores_data const **) OMAP_SRAM_SCRATCH_VCORES_PTR;
 struct omap_sys_ctrl_regs const **ctrl =
-	(struct omap_sys_ctrl_regs const **)OMAP5_SRAM_SCRATCH_SYS_CTRL;
+	(struct omap_sys_ctrl_regs const **)OMAP_SRAM_SCRATCH_SYS_CTRL;
 
 /* OPP HIGH FREQUENCY for ES2.0 */
 static const struct dpll_params mpu_dpll_params_1_5ghz[NUM_SYS_CLKS] = {
diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index d29df78..e192fea 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -37,10 +37,11 @@
 #include <asm/utils.h>
 #include <asm/arch/gpio.h>
 #include <asm/emif.h>
+#include <asm/omap_common.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-u32 *const omap_si_rev = (u32 *)OMAP5_SRAM_SCRATCH_OMAP5_REV;
+u32 *const omap_si_rev = (u32 *)OMAP_SRAM_SCRATCH_OMAP_REV;
 
 static struct gpio_bank gpio_bank_54xx[6] = {
 	{ (void *)OMAP54XX_GPIO1_BASE, METHOD_GPIO_24XX },