regulator: dt-bindings: Add PM6150x compatibles

Add PM6150 and PM6150L compatibles for Qualcomm SC7180 platfrom.
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570183734-30706-2-git-send-email-kgunda@codeaurora.orgSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -28,6 +28,8 @@ Supported regulator node names:
 	PM8150L:	smps1 - smps8, ldo1 - ldo11, bob, flash, rgb
 	PM8998:		smps1 - smps13, ldo1 - ldo28, lvs1 - lvs2
 	PMI8998:	bob
+	PM6150:         smps1 - smps5, ldo1 - ldo19
+	PM6150L:        smps1 - smps8, ldo1 - ldo11, bob
 
 ========================
 First Level Nodes - PMIC
@@ -43,6 +45,8 @@ First Level Nodes - PMIC
 		    "qcom,pm8150l-rpmh-regulators"
 		    "qcom,pm8998-rpmh-regulators"
 		    "qcom,pmi8998-rpmh-regulators"
+		    "qcom,pm6150-rpmh-regulators"
+		    "qcom,pm6150l-rpmh-regulators"
 
 - qcom,pmic-id
 	Usage:      required