[omap]: generate ubifs images

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


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39576 3c298f89-4303-0410-b956-a3cf2f4a3e73
[omap]: copy initramfs zImage to the bin dir as well

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


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39577 3c298f89-4303-0410-b956-a3cf2f4a3e73