ARM: dts: msm: Update the memory map for msm8226 wearable.

Update the device tree nodes for memory and splash screen
address  to be consistent with the new memory map for
msm8226 wearable devices.

Change-Id: I813b34458edd9c8a7ba95aa0667d456d99d15b8f
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
Signed-off-by: Tirtha Kanti Ghosh <tirtha@codeaurora.org>