staging: mt7621-dts: fix cpuintc and fixedregulator dtc warnings, fix xhci

Fix the cpuintc and fixedregulator dtc warnings:

Warning (unit_address_vs_reg): /cpuintc@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /fixedregulator@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /fixedregulator@1: node has a unit name, but no reg property
Warning (unique_unit_address): /cpuintc@0: duplicate unit-address (also used in node /fixedregulator@0)

Remove the unnecessary status = "okay" property from the xhci node.

Reviewed-by: Sergio Paracuellos <[e-mail]>
Signed-off-by: Arınç ÜNAL <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/mt7621-dts/mt7621.dtsi

···
 		};
 	};
 
-	cpuintc: cpuintc@0 {
+	cpuintc: cpuintc {
 		#address-cells = <0>;
 		#interrupt-cells = <1>;
 		interrupt-controller;
···
 	};
 
 
-	mmc_fixed_3v3: fixedregulator@0 {
+	mmc_fixed_3v3: regulator-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "mmc_power";
 		regulator-min-microvolt = <3300000>;
···
 		regulator-always-on;
 	};
 
-	mmc_fixed_1v8_io: fixedregulator@1 {
+	mmc_fixed_1v8_io: regulator-1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "mmc_io";
 		regulator-min-microvolt = <1800000>;
···
 	};
 
 	xhci: xhci@1e1c0000 {
-		status = "okay";
-
 		compatible = "mediatek,mt8173-xhci";
 		reg = <0x1e1c0000 0x1000
 		       0x1e1d0700 0x0100>;