arm64: dts: qcom: sm8350-hdk: include PMK8350

HDK8350 comes with PMK8350 PMIC, so include relevant DTSI.  This also
allows to use reboot reason.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230719192809.434709-1-krzysztof.kozlowski@linaro.org


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