arm64: dts: rockchip: switch px30-engicam to enable-gpios

The recommended name for enable GPIOs property in regulator-gpio is
enable-gpios.  This is also required by bindings:

  px30-engicam-px30-core-ctouch2.dtb: vcc3v3-btreg: Unevaluated properties are not allowed ('enable-gpio' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230725142616.157405-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: krzk

arch/arm64/boot/dts/rockchip/px30-engicam-ctouch2.dtsi

@@ -26,5 +26,5 @@
 };
 
 &vcc3v3_btreg {
-	enable-gpio = <&gpio1 RK_PC3 GPIO_ACTIVE_HIGH>;
+	enable-gpios = <&gpio1 RK_PC3 GPIO_ACTIVE_HIGH>;
 };

arch/arm64/boot/dts/rockchip/px30-engicam-px30-core-edimm2.2.dts

@@ -39,5 +39,5 @@
 };
 
 &vcc3v3_btreg {
-	enable-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
+	enable-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
 };