arm64: dts: qcom: msm8916-huawei-g7: Add display regulator

The display on the Huawei Ascend G7 is supplied by a TI TPS65132
regulator. The panel needs a driver in mainline first, but the
TPS65132 is already supported in mainline by the tps65132 driver.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210514104328.18756-4-stephan@gerhold.net


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