ARM: dts: msm: Add entry for relocatable pil heaps

Add device tree entry for relocatable pil heaps to
be loaded using the ion framework, and update the
device tree to with latest address of the memory
hole.

Change-Id: I7160159dce4897040610dfeece405cd41e5db415
Signed-off-by: Neeti Desai <neetid@codeaurora.org>