gpu-viv-bin-mx6q: Don't package X11 libraries in non-X11 builds
Running
readelf --dynamic libGL.so | grep NEEDED
shows that the library has runtime dependencies on X11 libs and libglapi.so.
However, none of them are listed as build dependencies for non-X11 distros.
In this case, skip packaging libGL, so that it doesn't cause unexpected
dependency changes in buildhistory.
Signed-off-by: Jacob Kroon <jacob.kroon@mikrodidakt.se> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>