ARM: dts: ls1021a: Disable CAN nodes by default

These are peripherals with external signals, so disable them by default.

Signed-off-by: Alexander Stein <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/ls1021a.dtsi

···
 			clocks = <&clockgen 4 1>, <&clockgen 4 1>;
 			clock-names = "ipg", "per";
 			big-endian;
+			status = "disabled";
 		};
 
 		can1: can@2a80000 {
···
 			clocks = <&clockgen 4 1>, <&clockgen 4 1>;
 			clock-names = "ipg", "per";
 			big-endian;
+			status = "disabled";
 		};
 
 		can2: can@2a90000 {
···
 			clocks = <&clockgen 4 1>, <&clockgen 4 1>;
 			clock-names = "ipg", "per";
 			big-endian;
+			status = "disabled";
 		};
 
 		can3: can@2aa0000 {
···
 			clocks = <&clockgen 4 1>, <&clockgen 4 1>;
 			clock-names = "ipg", "per";
 			big-endian;
+			status = "disabled";
 		};
 
 		ocram1: sram@10000000 {