ARM: dts: sa8155-capture: Add dt nodes for msm-restart driver

Add dt nodes required for msm_restart driver to capture kernel. This
enables kdump to take ramdump/minidump from capture kernel.

Change-Id: Id111f47949d7984758685853fe4edcc1601ac9b9
Signed-off-by: Akshay Adiga <aadiga@codeaurora.org>