MIPS: DTS: CI20: fix how ddc power is enabled

Originally we proposed a new hdmi-5v-supply regulator reference
for CI20 device tree but that was superseded by a better idea to use
the already defined "ddc-en-gpios" property of the "hdmi-connector".

Since "MIPS: DTS: CI20: Add DT nodes for HDMI setup" has already
been applied to v5.17-rc1, we add this on top.

Fixes: ae1b8d2c ("MIPS: DTS: CI20: Add DT nodes for HDMI setup")
Signed-off-by: NH. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: NPaul Cercueil <paul@crapouillou.net>
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/ingenic/ci20.dts

@@ -83,6 +83,8 @@
 		label = "HDMI OUT";
 		type = "a";
 
+		ddc-en-gpios = <&gpa 25 GPIO_ACTIVE_HIGH>;
+
 		port {
 			hdmi_con: endpoint {
 				remote-endpoint = <&dw_hdmi_out>;
@@ -114,17 +116,6 @@
 		gpio = <&gpf 14 GPIO_ACTIVE_LOW>;
 		enable-active-high;
 	};
-
-	hdmi_power: fixedregulator@3 {
-		compatible = "regulator-fixed";
-
-		regulator-name = "hdmi_power";
-		regulator-min-microvolt = <5000000>;
-		regulator-max-microvolt = <5000000>;
-
-		gpio = <&gpa 25 0>;
-		enable-active-high;
-	};
 };
 
 &ext {
@@ -576,8 +567,6 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pins_hdmi_ddc>;
 
-	hdmi-5v-supply = <&hdmi_power>;
-
 	ports {
 		#address-cells = <1>;
 		#size-cells = <0>;