dt-bindings: regulator: document pm8950 and pm8953 smd regulators

Add list of regulators available on PM8953 and PM8950 PMICs. Also
document compatible for PM8953.
Signed-off-by: Vladimir Lypak <junak.pub@gmail.com>
Link: https://lore.kernel.org/r/20201004083413.324351-2-junak.pub@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml

@@ -33,6 +33,10 @@ description:
   l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2,
   lvs3, 5vs1, 5vs2
 
+  For pm8950 and pm8953, s1, s2, s3, s4, s5, s6, s7, l1, l2, l3, l4, l5, l6,
+  l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22,
+  l23
+
   For pm8994, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3,
   l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19,
   l20, l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2
@@ -68,6 +72,7 @@ properties:
       - qcom,rpm-pm8916-regulators
       - qcom,rpm-pm8941-regulators
       - qcom,rpm-pm8950-regulators
+      - qcom,rpm-pm8953-regulators
       - qcom,rpm-pm8994-regulators
       - qcom,rpm-pm8998-regulators
       - qcom,rpm-pm660-regulators