[uboot-envtools]: add mvebu support

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41380 3c298f89-4303-0410-b956-a3cf2f4a3e73
[mvebu]: automatically generate network config

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41381 3c298f89-4303-0410-b956-a3cf2f4a3e73
[mvebu]: fixup mac addresses on the WRT1900AC

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41382 3c298f89-4303-0410-b956-a3cf2f4a3e73
[mvebu]: use the power led on the WRT1900AC for status reporting

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41383 3c298f89-4303-0410-b956-a3cf2f4a3e73