bmips: add missing switch cpu label

Signed-off-by: Álvaro Fernández Rojas <[email protected]>

target/linux/bmips/dts/bcm6318.dtsi

@@ -400,6 +400,7 @@
 
 				port@8 {
 					reg = <8>;
+					label = "cpu";
 
 					phy-mode = "internal";
 					ethernet = <&ethernet>;

target/linux/bmips/dts/bcm63268.dtsi

@@ -521,6 +521,7 @@
 
 				port@8 {
 					reg = <8>;
+					label = "cpu";
 
 					phy-mode = "internal";
 					ethernet = <&ethernet>;

target/linux/bmips/dts/bcm6328.dtsi

@@ -418,6 +418,7 @@
 
 				port@8 {
 					reg = <8>;
+					label = "cpu";
 
 					phy-mode = "internal";
 					ethernet = <&ethernet>;

target/linux/bmips/dts/bcm6362.dtsi

@@ -515,6 +515,7 @@
 
 				port@8 {
 					reg = <8>;
+					label = "cpu";
 
 					phy-mode = "internal";
 					ethernet = <&ethernet>;

target/linux/bmips/dts/bcm6368.dtsi

@@ -529,6 +529,7 @@
 
 				port@8 {
 					reg = <8>;
+					label = "cpu";
 
 					phy-mode = "internal";
 					ethernet = <&ethernet>;