arm64: dts: qcom: sm8450-nagara: Enable PMIC RESIN+PON

Enable the power and volume up buttons, connected to PON and RESIN
respectively.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221229103212.984324-6-konrad.dybcio@linaro.org