dt-bindings: power: qcom,rpmhpd: Add GMXC PD index

Document GMXC (Graphics MXC) power domain index which will be used on
SC8380XP SoCs.

Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Link: https://lore.kernel.org/r/20231025135943.13854-2-quic_sibis@quicinc.com
[Ulf: Re-based to step up the index number]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

dt-bindings: power: qcom,rpmpd: document the SM8650 RPMh Power Domains

Document the RPMh Power Domains on the SM8650 Platform.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231025-topic-sm8650-upstream-rpmpd-v1-1-f25d313104c6@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

dt-bindings: power: qcom,rpmhpd: Add Generic RPMh PD indexes

Add Generic RPMh Power Domain indexes that can be used
for all the Qualcomm SoC henceforth.
The power domain indexes of these bindings are based on compatibility
with current targets like SM8[2345]50 targets.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/1689744162-9421-2-git-send-email-quic_rohiagar@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>