ARM: dts: msm: Add camera DTSI files for 8937

Adding new files with nodes for all camera
hardware like ISP, CPP, CSID, CSIPHY etc. and
adding logical nodes for external sensors with
all the required voltage regulators and gpios.
Also, add camera nodes to pin control file.

Change-Id: I4380e8ee15fbe98b9817994b8d37bf6527490170
Signed-off-by: Vijay kumar Tumati <vtumati@codeaurora.org>
Signed-off-by: Abhishek Kondaveeti <akondave@codeaurora.org>