[tools] fix mktitanimg segfault on 64-bits hosts (#7443) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21767 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] add mktitanimg to create Titan (AR7-based) images (#6632) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21689 3c298f89-4303-0410-b956-a3cf2f4a3e73