Make thermal-engine thresholds for soc id 153 linear.

This will allow the cpu to stay at 18900 up to 80 degrees instead of only to 70.

Change-Id: I8b21df263caeb8eb283215b2f9ae9b0a505d34ab
Don't assume multiple RING events from the radio layer

Qualcomm radios appear to never send anything beyond RIL_UNSOL_CALL_RING,
so set call_ring.multiple to false

Fixes non-repeating ringtones.
Fixes CYAN-2277

Change-Id: I72680c7585b4a3d0ee0fb85733a9784a87ef4471
Merge remote-tracking branch 'cm/cm-10.2' into HEAD