arm64: dts: msm8998: thermal: Fix the cpu sensor numbers

The silver cluster (typically cpu0-3) are monitored by sensor IDs 1-3 on
tsens controller 0. The gold cluster (typically cpu4-7) are monitored by
sensor IDs 7-10 on tsens controller 0.

Fixes: 4449b6f2 ("arm64: dts: qcom: msm8998: Add tsens and thermal-zones")
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>