ramips: rt305x: add support for the Skyline SL-R7205 Wireless 3G router

[juhosg:
- don't switch back to 2.6.39
- update config-3.2
- change machine id to SL-R7205
- reorder case entries in platform scripts
- remove button hotplug script]

Signed-off-by: Haipoh Teoh <hpteoh@ceedtec.com>

SVN-Revision: 30645

target/linux/ramips/base-files/lib/preinit/06_set_iface_mac

@@ -9,9 +9,10 @@ preinit_set_mac_address() {
 
 	case $(ramips_board_name) in
 	bc2 |\
+	esr-9753 |\
 	nw718 |\
 	rt-n56u |\
-	esr-9753)
+	sl-r7205)
 		mac=$(ramips_get_mac_binary factory 4)
 		mac=$(maccalc or "$mac" "02:00:00:00:00:00")
 		ifconfig eth0 hw ether $mac 2>/dev/null