ath79: fix syntax error in ar7240_tplink_tl-wa.dtsi

The node needs to be terminated by a semicolon.

Fixes: 8484a764df20 ("ath79: ar724x: make sure builtin-switch is
enabled in DT")

Signed-off-by: Adrian Schmutzler <[email protected]>

target/linux/ath79/dts/ar7240_tplink_tl-wa.dtsi

@@ -11,7 +11,7 @@
 
 &eth0 {
 	compatible = "syscon", "simple-mfd";
-}
+};
 
 &eth1 {
 	mtd-mac-address = <&uboot 0x1fc00>;