Update dtkcommon to version 5.5.17 / rev 2 via SR 910884
https://build.opensuse.org/request/show/910884
by user hillwood + RBrownSUSE
- Update version to 5.5.17
* Drop com.deepin.dtk.FileDrag.conf
* Update dependence for dtk (forwarded request 910670 from hillwood)