ARM: OMAP5: Correct the DRAM_ADDR_SPACE_END macro.

OMAP5 evm board has 2GB of memory. So correct the
macro to take in to account of the full dram size.

Signed-off-by: R Sricharan <r.sricharan@ti.com>

arch/arm/include/asm/arch-omap5/omap.h

@@ -40,7 +40,7 @@
 #define OMAP54XX_L4_PER_BASE	0x48000000
 
 #define OMAP54XX_DRAM_ADDR_SPACE_START	0x80000000
-#define OMAP54XX_DRAM_ADDR_SPACE_END	0xD0000000
+#define OMAP54XX_DRAM_ADDR_SPACE_END	0xFFFFFFFF
 #define DRAM_ADDR_SPACE_START	OMAP54XX_DRAM_ADDR_SPACE_START
 #define DRAM_ADDR_SPACE_END	OMAP54XX_DRAM_ADDR_SPACE_END