arm64: dts: sm8250-mtp: add thermal zones using pmic's adc-tm5

Port thermal zones definitions from msm-4.19 tree. Enable and add
channel configuration to PMIC's ADC-TM definitions. Declare thermal
zones and respective trip points.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210119054848.592329-5-dmitry.baryshkov@linaro.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>