split "patches" into 2 submenus

git-svn-id: file:///var/svn/freetz/trunk@9850 149334a1-2f27-0410-a3b9-fc62619ac1e6
move 7570IAD to alien menu, so no longer a 7570-iad-alien-w920v is possible

git-svn-id: file:///var/svn/freetz/trunk@9851 149334a1-2f27-0410-a3b9-fc62619ac1e6