Modify the base of memory map for CONFIG_VMSPLIT 3G/1G.

To support 512MByte SDRAM.
Signed-off-by: Rashed Abdel-Tawab <rashedabdeltawab@gmail.com>

Change-Id: Id219fd6f627f289d0f263a95eeaa085e6a1a6c2f

Conflicts:

	arch/arm/mach-msm/include/mach/msm_iomap-7xxx.h
	arch/arm/mach-msm/include/mach/vmalloc.h