ARM: dts: marvell: mmp2-olpc-xo-1-75: Switch to {hp,mic}-det-gpios

Replace the deprecated "hp-det-gpio" and "mic-det-gpio" properties by
"hp-det-gpios" resp. "mic-det-gpios" in Audio Graph Card device nodes.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/7b4d7d735189fb346175a95e29db33f01c8cf93d.1727438777.git.geert+renesas@glider.be
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

arch/arm/boot/dts/marvell/mmp2-olpc-xo-1-75.dts

@@ -113,8 +113,8 @@
 			  "Headphones", "HPOR",
 			  "MIC2", "Mic Jack";
 		widgets = "Headphone", "Headphones", "Microphone", "Mic Jack";
-		hp-det-gpio = <&gpio 97 GPIO_ACTIVE_HIGH>;
-		mic-det-gpio = <&gpio 96 GPIO_ACTIVE_HIGH>;
+		hp-det-gpios = <&gpio 97 GPIO_ACTIVE_HIGH>;
+		mic-det-gpios = <&gpio 96 GPIO_ACTIVE_HIGH>;
 	};
 
 	soc {