regulator: qcom,rpmh: add pm660 and pm660l pmics

The SDM670 uses RPMh for managing the PM660 and PM660L. Document RPMh
support for the PMIC.

Link: https://android.googlesource.com/kernel/msm/+/58064f13c0a436a82c35f2e3b5a122d874ae5846%5E%21/#F0
Signed-off-by: Richard Acayan <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[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

···
       For PM6150, smps1 - smps5, ldo1 - ldo19
       For PM6150L, smps1 - smps8, ldo1 - ldo11, bob
       For PM6350, smps1 - smps5, ldo1 - ldo22
+      For PM660, smps1 - smps6, ldo1 - ldo3, ldo5 - ldo19
+      For PM660L, smps1 - smps3, smps5, ldo1 - ldo8, bob
       For PM7325, smps1 - smps8, ldo1 - ldo19
       For PM8005, smps1 - smps4
       For PM8009, smps1 - smps2, ldo1 - ldo7
···
       - qcom,pm6150-rpmh-regulators
       - qcom,pm6150l-rpmh-regulators
       - qcom,pm6350-rpmh-regulators
+      - qcom,pm660-rpmh-regulators
+      - qcom,pm660l-rpmh-regulators
       - qcom,pm7325-rpmh-regulators
       - qcom,pm8005-rpmh-regulators
       - qcom,pm8009-rpmh-regulators
···
         vdd-l9-l10-supply: true
       patternProperties:
         "^vdd-s[1-8]-supply$": true
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,pm660-rpmh-regulators
+    then:
+      properties:
+        vdd-l1-l6-l7-supply: true
+        vdd-l2-l3-supply: true
+        vdd-l5-supply: true
+        vdd-l8-l9-l10-l11-l12-l13-l14-supply: true
+        vdd-l15-l16-l17-l18-l19-supply: true
+      patternProperties:
+        "^vdd-s[1-6]-supply$": true
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,pm660l-rpmh-regulators
+    then:
+      properties:
+        vdd-bob-supply:
+          description: BOB regulator parent supply phandle.
+        vdd-l1-l9-l10-supply: true
+        vdd-l2-supply: true
+        vdd-l3-l5-l7-l8-supply: true
+        vdd-l4-l6-supply: true
+        vdd-s3-s4-supply: true
+      patternProperties:
+        "^vdd-s[125]-supply$": true
 
   - if:
       properties: