dt-bindings: pinctrl: qcom,pmic-gpio: Add compatible for SA8155p-adp

Add pmic-gpio compatible string for pmm8155au pmic
found on the SA8155p-adp board.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20210629123407.82561-3-bhupesh.sharma@linaro.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

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

@@ -34,6 +34,7 @@ PMIC's from Qualcomm.
 		    "qcom,pmi8994-gpio"
 		    "qcom,pmi8998-gpio"
 		    "qcom,pmk8350-gpio"
+		    "qcom,pmm8155au-gpio"
 		    "qcom,pmr735a-gpio"
 		    "qcom,pmr735b-gpio"
 		    "qcom,pms405-gpio"
@@ -124,6 +125,7 @@ to specify in a pin configuration subnode:
 		    gpio1-gpio2  for pmi8950
 		    gpio1-gpio10 for pmi8994
 		    gpio1-gpio4  for pmk8350
+		    gpio1-gpio10 for pmm8155au
 		    gpio1-gpio4  for pmr735a
 		    gpio1-gpio4  for pmr735b
 		    gpio1-gpio12 for pms405 (holes on gpio1, gpio9 and gpio10)