arm64: dts: ti: k3-j721e: Disable MHDP in SoC- and enable in board-dt

The DisplayPort IP is not usable without pinmuxing and DisplayPort
connector, so lets disable it in SoC dt and enable in board dt files.

Signed-off-by: Jyri Sarha <jsarha@ti.com>

arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts

@@ -441,6 +441,7 @@
 };
 
 &mhdp {
+	status = "ok";
 	pinctrl-names = "default";
 	pinctrl-0 = <&dp0_pins_default>;
 };

arch/arm64/boot/dts/ti/k3-j721e-main.dtsi

@@ -950,6 +950,8 @@
 		reg = <0x00 0x0A000000 0x0 0x30A00>, /* DSS_EDP0_V2A_CORE_VP_REGS_APB - upto PHY mapped area */
 		      <0x00 0x04F40000 0x0 0x20>;    /* DSS_EDP0_INTG_CFG_VP */
 
+		status = "disabled";
+
 		clocks = <&k3_clks 151 36>;
 
 		phys = <&serdes4>;

arch/arm64/boot/dts/ti/k3-j721e-proc-board-tps65917.dts

@@ -476,6 +476,7 @@
 };
 
 &mhdp {
+	status = "ok";
 	pinctrl-names = "default";
 	pinctrl-0 = <&dp0_pins_default>;
 };