ARM: dts: msm: Update SMEM base address for msm8909

SMEM base address is changed in V2 memory map revision.

Update the SMEM device tree entry to match the new V2 memory map.

Change-Id: Idb6273cc892698db80739c30a829e98c6bc623e1
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>