arm64: dts: qcom: sc8180x-pmics: add missing qcom,spmi-gpio fallbacks

The GPIO children of PMICs should use qcom,spmi-gpio fallback:

  sc8180x-primus.dtb: pmic@0: gpio@c000:compatible: ['qcom,pmc8180-gpio'] is too short

Fixes: d3302290 ("arm64: dts: qcom: sc8180x: Add pmics")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230720083500.73554-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc8180x-pmics.dtsi

@@ -142,7 +142,7 @@ rtc@6000 {
 		};
 
 		pmc8180_gpios: gpio@c000 {
-			compatible = "qcom,pmc8180-gpio";
+			compatible = "qcom,pmc8180-gpio", "qcom,spmi-gpio";
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;
@@ -300,7 +300,7 @@ pmc8180c_adc_tm: adc-tm@3500 {
 		};
 
 		pmc8180c_gpios: gpio@c000 {
-			compatible = "qcom,pmc8180c-gpio";
+			compatible = "qcom,pmc8180c-gpio", "qcom,spmi-gpio";
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;