thermal: Update raviole thermal config

1. Update virtual skin sensor formula based on PD's proposal.
2. Adjust cellular throttling threshold
3. Add CPU thermal sensor - BIG

Bug: 184592229
Bug: 186585171
Test: 1. check thermalhal logging for virtual sensor temperature reading
      2. boot with maxcpus=4
      3. adb shell lshal debug android.hardware.thermal@2.0::IThermal/default
Change-Id: I01b74169afda56ae59f318d9ad23ccc222192550
2 files changed