ARM: dts: msm: Add device tree for sa6155 and sa6155p

Add initial device tree support for APQ and MSM version of
SA6155 based automotive platforms.

Change-Id: Icbf08e920b9ee755b91e5318a82f23a8b68b47a8
Signed-off-by: Arun KS <arunks@codeaurora.org>