- added OpenWrt oldpackages feed, to resolve missing packages like 'bridge',...

- added OpenWrt oldpackages feed, to resolve missing packages like 'bridge', 'gpioctl-sysfs', 'libugpio', 'mii-tool' and 'kmod-gpiotoggling'

Signed-off-by: Steffen Pankratz <kratz00@gmx.de>
Reviewed-by: Tim Niemeyer <tim.niemeyer@mastersword.de>