realtek: fix indentation in 02_network

There is a missing tab in one of the cases of MAC address configuration.

Signed-off-by: Jan Hoffmann <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/21644
Signed-off-by: Hauke Mehrtens <[email protected]>

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

@@ -83,7 +83,7 @@ realtek_setup_macs()
 	plasmacloud,psx28)
 		lan_mac_start=skip
 		lan_mac="$(get_mac_label)"
-	;;
+		;;
 	tplink,tl-st1008f-v2|\
 	zyxel,xgs1010-12-a1)
 		lan_mac=$(mtd_get_mac_ascii u-boot-env ethaddr)