ARM: OMAP3: Rename OMAP3_PUBLIC_SRAM_* to NON_SECURE_SRAM_*

Other TI processors like am33xx, omap4 and omap5 have called these variables
as NON_SECURE_SRAM_*, shouldn't be a big problem rename these variables to
be coherent.

One reason more to rename these variables is to have the possibility of any
OMAP3 board to use the ti_armv7_common.h include as the NON_SECURE_SRAM_END
is used to define the CONFIG_SYS_INIT_SP_ADDR variable.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>

arch/arm/include/asm/arch-omap3/omap3.h

@@ -140,13 +140,13 @@ struct gpio {
 					 SRAM_OFFSET2)
 #define SRAM_CLK_CODE			(SRAM_VECT_CODE + 64)
 
-#define OMAP3_PUBLIC_SRAM_BASE		0x40208000 /* Works for GP & EMU */
-#define OMAP3_PUBLIC_SRAM_END		0x40210000
+#define NON_SECURE_SRAM_START		0x40208000 /* Works for GP & EMU */
+#define NON_SECURE_SRAM_END		0x40210000
 
 #define LOW_LEVEL_SRAM_STACK		0x4020FFFC
 
 /* scratch area - accessible on both EMU and GP */
-#define OMAP3_PUBLIC_SRAM_SCRATCH_AREA	OMAP3_PUBLIC_SRAM_BASE
+#define OMAP3_PUBLIC_SRAM_SCRATCH_AREA	NON_SECURE_SRAM_START
 
 #define DEBUG_LED1			149	/* gpio */
 #define DEBUG_LED2			150	/* gpio */