dt-bindings: pinctrl: qcom-pmic-gpio: Add support for PM/PMI8950

Document the bindings for PM8950 and PMI8950 PMIC GPIOs.
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20191031103507.30678-3-kholk11@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt

@@ -15,9 +15,11 @@ PMIC's from Qualcomm.
 		    "qcom,pm8917-gpio"
 		    "qcom,pm8921-gpio"
 		    "qcom,pm8941-gpio"
+		    "qcom,pm8950-gpio"
 		    "qcom,pm8994-gpio"
 		    "qcom,pm8998-gpio"
 		    "qcom,pma8084-gpio"
+		    "qcom,pmi8950-gpio"
 		    "qcom,pmi8994-gpio"
 		    "qcom,pmi8998-gpio"
 		    "qcom,pms405-gpio"
@@ -93,9 +95,11 @@ to specify in a pin configuration subnode:
 		    gpio1-gpio38 for pm8917
 		    gpio1-gpio44 for pm8921
 		    gpio1-gpio36 for pm8941
+		    gpio1-gpio8 for pm8950 (hole on gpio3)
 		    gpio1-gpio22 for pm8994
 		    gpio1-gpio26 for pm8998
 		    gpio1-gpio22 for pma8084
+		    gpio1-gpio2 for pmi8950
 		    gpio1-gpio10 for pmi8994
 		    gpio1-gpio12 for pms405 (holes on gpio1, gpio9 and gpio10)
 		    gpio1-gpio10 for pm8150 (holes on gpio2, gpio5, gpio7