ARM: dts: msm: Add msm-thermal mitigation device for MSM Krypton

Add kernel msm-thermal mitigation device for MSM Krypton SoC.
This enables the Kernel Thermal Monitor(KTM) during boot-up,
which provides basic thermal mitigation. The KTM is enabled
till the userspace thermal mitigation takes over.

Change-Id: I7b060d98739b2a35427e5a724114378d9c5b4c22
Signed-off-by: Anji Jonnala <anjir@codeaurora.org>