msm: camera: Add camera dt binding definitions

Define camera cpas path definitions to be used in device tree
and driver for bandwidth consolidation.

CRs-Fixed: 2547022
Change-Id: I9befbb0c4feadbbc9152bcbc118b9cab3a61eecc
Signed-off-by: Karthik Jayakumar <kjayakum@codeaurora.org>