squashfs4: add lzma support (kernel support still missing) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15884 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] add tool for squashfs4 image generation (w/o LZMA support) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15864 3c298f89-4303-0410-b956-a3cf2f4a3e73