remove v4l error and include gstreamer 010 for qtmultimedia

This gets rid of 2 errors. v4l-utils cannot build without X11, so we
exclude it if X11 isn't in distro features. Also, qtmultimedia uses the
wrong version of gstreamer so we correct that in the PACKAGECONFIG.

Signed-off-by: Stephano Cetola <scetola@reachtech.com>