mediatek: filogic: remove stray quote

When adapting the network configuration for MT7988 RFB a stray quote
was left in a script. Remove it to fix generating the default network
configuration.

Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/filogic/base-files/etc/board.d/02_network

@@ -37,7 +37,7 @@ mediatek_setup_interfaces()
 		ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3" eth1
 		;;
 	mediatek,mt7988a-rfb)
-		ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3 eth1" eth2"
+		ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3 eth1" eth2
 		;;
 	mercusys,mr90x-v1)
 		ucidef_set_interfaces_lan_wan "lan0 lan1 lan2" eth1