ARM: dts: msm: Add thermal mitigation config for NPU in SM8150

Add thermal configuration for monitoring NPU temperature and mitigate.
The current config monitors for a 95C threshold and uses step-wise
algorithm to mitigate.

Change-Id: I294ed0107e20e7b3e98fada76ef10ea37e69e6d2
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>