brcm47xx: cosmetic fix in model detection

In "brcm47xx: rework model detection" the file 01_detect was moved
to 01_network, therefore also update the warning message in case
everything fails.

Signed-off-by: Paul Wassi <p.wassi@gmx.at>

target/linux/brcm47xx/base-files/etc/board.d/01_network

@@ -39,7 +39,7 @@ configure_by_vlanports() {
 			"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "5@eth0"
 
 	else
-		logger -t "01_detect" "Unable to determine network configuration"
+		logger -t "01_network" "Unable to determine network configuration"
 		ucidef_set_interface_lan "eth0"
 	fi
 }