ARM: dts: msm: add memory regions on lito

Add carveout memory regions in accordance with the memory map for lito
SoC. Also add generic cma pool for lito.

Change-Id: I80e8902d891dd2892c28cd071074bd43991c1753
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>