regulator: dt-bindings: qcom,rpmh: Combine PM6150L and PM8150L if-then

The supplies for PM6150L and PM8150L are the same, so they can be part
of one if-then block, for smaller code.

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

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

···
         compatible:
           enum:
             - qcom,pm6150l-rpmh-regulators
+            - qcom,pm8150l-rpmh-regulators
+            - qcom,pmc8180c-rpmh-regulators
     then:
       properties:
         vdd-bob-supply:
···
         vdd-l8-l9-supply: true
       patternProperties:
         "^vdd-s[1-9]-supply$": true
-
-  - if:
-      properties:
-        compatible:
-          enum:
-            - qcom,pm8150l-rpmh-regulators
-            - qcom,pmc8180c-rpmh-regulators
-    then:
-      properties:
-        vdd-bob-supply:
-          description: BOB regulator parent supply phandle.
-        vdd-l1-l8-supply: true
-        vdd-l2-l3-supply: true
-        vdd-l4-l5-l6-supply: true
-        vdd-l7-l11-supply: true
-        vdd-l9-l10-supply: true
-      patternProperties:
-        "^vdd-s[1-8]-supply$": true
 
   - if:
       properties: