qt: Unbreak build with qt-egl enabled but viv_fb missing
Avoids an error message when the feature is explicitly enabled:
ERROR: Feature qt-egl cannot be enabled: gstreamer-gl-viv_fb-1.0 is required
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Avoids an error message when the feature is explicitly enabled:
ERROR: Feature qt-egl cannot be enabled: gstreamer-gl-viv_fb-1.0 is required