arm64: dts: qcom: pm8994: fix mpps device tree node

Add missing "qcom,spmi-mpp" to the compatible list as required by the
node description. Also add gpio-ranges property to mpps device tree
node, adding the mapping between pinctrl and GPIO pins.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211008012524.481877-12-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/pm8994.dtsi

@@ -119,10 +119,11 @@
 		};
 
 		pm8994_mpps: mpps@a000 {
-			compatible = "qcom,pm8994-mpp";
+			compatible = "qcom,pm8994-mpp", "qcom,spmi-mpp";
 			reg = <0xa000>;
 			gpio-controller;
 			#gpio-cells = <2>;
+			gpio-ranges = <&pm8994_mpps 0 0 8>;
 			interrupts = <0 0xa0 0 IRQ_TYPE_NONE>,
 				     <0 0xa1 0 IRQ_TYPE_NONE>,
 				     <0 0xa2 0 IRQ_TYPE_NONE>,