regulator: dt-bindings: qcom,rpmh: Add PMX75 compatible

Add PMX75 compatibles for PMIC found in SDX75 platform.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/1689062414-3654-3-git-send-email-quic_rohiagar@quicinc.com


Signed-off-by: Mark Brown <broonie@kernel.org>