dt-bindings: soc: qcom: smd-rpm: add qcom,glink-channels

dt-bindings: soc: qcom: smd-rpm: add qcom,glink-channels

The Qualcomm Resource Power Manager (RPM) over SMD bindings contain
compatibles and description for RPM devices on two different
communication channels: SMD and GLINK.  Except the difference in the
parent node, they use different properties for describing name of
channel qcom,smd-channels or qcom,glink-channels.  The first one is
already present but second is missing:

  qcom/sm6125-sony-xperia-seine-pdx201.dtb: rpm-requests: 'qcom,glink-channels' does not match any of the regexes: '^regulators(-[01])?$', 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220926092104.111449-2-krzysztof.kozlowski@linaro.org