regulator: dt-bindings: qcom,rpmh: document vdd-l7-bob-supply on PMR735A

The PMR735A comes with vdd-l7-bob-supply supply which was previously not
documented.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: krzk

Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml

@@ -313,6 +313,7 @@ allOf:
         vdd-l3-supply: true
         vdd-l4-supply: true
         vdd-l5-l6-supply: true
+        vdd-l7-bob-supply: true
       patternProperties:
         "^vdd-s[1-3]-supply$": true