arm64: dts: qcom: sm6115: Add thermal zones

Add thermal zones associated with the on-SoC temperature sensors.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221209124026.178764-1-konrad.dybcio@linaro.org