msm: dcvs: Add thermal interfaces

The algorithm needs thermal inputs for all the cores. Create members in
the internal core_info strucutre and platform data/device tree to pass
in the sensors they use.

Update the dcvs code to notify the temperature to TZ.

Change-Id: I96e123eb49cdd564564e5fe12531407406eafa0c
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>