add 6840 *int*

git-svn-id: file:///var/svn/freetz/trunk@10309 149334a1-2f27-0410-a3b9-fc62619ac1e6
remove patches: AHA is without DECT useless

git-svn-id: file:///var/svn/freetz/trunk@10310 149334a1-2f27-0410-a3b9-fc62619ac1e6