arm64: dts: qcom: sm8150: use 'gpios' suffix for PCI GPIOs

Linux handles both versions, but bindings expect GPIO properties to
have 'gpios' suffix instead of 'gpio':

  sa8155p-adp.dtb: pci@1c00000: Unevaluated properties are not allowed ('perst-gpio' was unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231111164229.63803-3-krzysztof.kozlowski@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sm8150.dtsi

@@ -1878,7 +1878,7 @@ pcie0: pci@1c00000 {
 			phys = <&pcie0_phy>;
 			phy-names = "pciephy";
 
-			perst-gpio = <&tlmm 35 GPIO_ACTIVE_HIGH>;
+			perst-gpios = <&tlmm 35 GPIO_ACTIVE_HIGH>;
 			enable-gpio = <&tlmm 37 GPIO_ACTIVE_HIGH>;
 
 			pinctrl-names = "default";
@@ -1972,7 +1972,7 @@ pcie1: pci@1c08000 {
 			phys = <&pcie1_phy>;
 			phy-names = "pciephy";
 
-			perst-gpio = <&tlmm 102 GPIO_ACTIVE_HIGH>;
+			perst-gpios = <&tlmm 102 GPIO_ACTIVE_HIGH>;
 			enable-gpio = <&tlmm 104 GPIO_ACTIVE_HIGH>;
 
 			pinctrl-names = "default";