mpc85xx: fix Enterasys WS-AP3710i eth mac-address

With the introduction of the simpleImage loader, the MAC address is not
set by the bootloader anymore.

Fix this by reading the MAC address from the U-Boot environment
partition.

Signed-off-by: David Bauer <[email protected]>

target/linux/mpc85xx/base-files/lib/preinit/10_fix_eth_mac.sh

@@ -3,6 +3,9 @@
 
 preinit_set_mac_address() {
 	case $(board_name) in
+	enterasys,ws-ap3710i)
+		ip link set dev eth0 address $(mtd_get_mac_ascii cfg1 ethaddr)
+		;;
 	enterasys,ws-ap3715i|\
 	extreme-networks,ws-ap3825i)
 		ip link set dev eth0 address $(mtd_get_mac_ascii cfg1 ethaddr)