double insertion declaration

The fact that icc_async.h and atr.h are included both
leads to double declaration from smartdev_found integer.
since atr.h is included in atr.h do not needs to be included in reader common.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8979 4b0bc96b-bc66-0410-9d44-ebda105a78c1