dt-bindings: thermal: tsens: Add sc8180x compatible

The Qualcomm sc8180x platform has the usual tsens blocks, add compatible
for this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210608201638.2136344-1-bjorn.andersson@linaro.org