Only run marvell init script for XG6846B.

iopsys-brcm63xx-arm/panther/base-files/etc/init.d/marvell

@@ -6,6 +6,9 @@ START=20
 USE_PROCD=1
 
 boot() {
+	# Only run for XG6846B board
+	[ $(db -q get hw.board.model_name) != XG6846B ] && exit 0
+
 	disable_addr_learn
 	port_mapping