arm64: dts: qcom: sdm630-sony-xperia: correct GPIO keys wakeup

gpio-keys,wakeup is a deprecated property:

  sdm630-sony-xperia-nile-voyager.dtb: gpio-keys: key-vol-down: Unevaluated properties are not allowed ('gpio-key,wakeup' was unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230304123358.34274-5-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi

@@ -112,7 +112,7 @@ key-vol-down {
 			gpios = <&pm660l_gpios 7 GPIO_ACTIVE_LOW>;
 			linux,input-type = <1>;
 			linux,code = <KEY_VOLUMEDOWN>;
-			gpio-key,wakeup;
+			wakeup-source;
 			debounce-interval = <15>;
 		};
 	};