arm: dts: qcom: Add generic PMIC gpio/MPP compat strings

Add the generic compatible strings for the PMIC gpio and MPP
modules found on qcom based PMICs.

Cc: <[e-mail]>
Cc: "Ivan T. Ivanov" <[e-mail]>
Cc: Bjorn Andersson <[e-mail]>
Cc: Rob Herring <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Reviewed-by: Bjorn Andersson <[e-mail]>
Signed-off-by: Andy Gross <[e-mail]>

arch/arm/boot/dts/qcom-apq8064.dtsi

···
 
 				pm8921_gpio: gpio@150 {
 
-					compatible = "qcom,pm8921-gpio";
+					compatible = "qcom,pm8921-gpio",
+						     "qcom,ssbi-gpio";
 					reg = <0x150>;
 					interrupts = <192 1>, <193 1>, <194 1>,
 						     <195 1>, <196 1>, <197 1>,
···
 				};
 
 				pm8921_mpps: mpps@50 {
-					compatible = "qcom,pm8921-mpp";
+					compatible = "qcom,pm8921-mpp",
+						     "qcom,ssbi-mpp";
 					reg = <0x50>;
 					gpio-controller;
 					#gpio-cells = <2>;

arch/arm/boot/dts/qcom-pm8841.dtsi

···
 		#size-cells = <0>;
 
 		pm8841_mpps: mpps@a000 {
-			compatible = "qcom,pm8841-mpp";
+			compatible = "qcom,pm8841-mpp", "qcom,spmi-mpp";
 			reg = <0xa000 0x400>;
 			gpio-controller;
 			#gpio-cells = <2>;

arch/arm/boot/dts/qcom-pm8941.dtsi

···
 		};
 
 		pm8941_gpios: gpios@c000 {
-			compatible = "qcom,pm8941-gpio";
+			compatible = "qcom,pm8941-gpio", "qcom,spmi-gpio";
 			reg = <0xc000 0x2400>;
 			gpio-controller;
 			#gpio-cells = <2>;
···
 		};
 
 		pm8941_mpps: mpps@a000 {
-			compatible = "qcom,pm8941-mpp";
+			compatible = "qcom,pm8941-mpp", "qcom,spmi-mpp";
 			reg = <0xa000 0x800>;
 			gpio-controller;
 			#gpio-cells = <2>;

arch/arm/boot/dts/qcom-pma8084.dtsi

···
 		};
 
 		pma8084_gpios: gpios@c000 {
-			compatible = "qcom,pma8084-gpio";
+			compatible = "qcom,pma8084-gpio", "qcom,spmi-gpio";
 			reg = <0xc000 0x1600>;
 			gpio-controller;
 			#gpio-cells = <2>;
···
 		};
 
 		pma8084_mpps: mpps@a000 {
-			compatible = "qcom,pma8084-mpp";
+			compatible = "qcom,pma8084-mpp", "qcom,spmi-mpp";
 			reg = <0xa000 0x800>;
 			gpio-controller;
 			#gpio-cells = <2>;