PACKAGECONFIG 'gtk' is enabled by default for gstreamer1.0-plugins-good
and it makes gstreamer1.0-plugins-good depends on package gtk+3 which
requires any distro feature in ${GTK3DISTROFEATURES}. When none distro
feature is enabled from ${GTK3DISTROFEATURES}, it causes error:
| ERROR: Nothing PROVIDES 'gtk+3' (but .../meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.14.0.bb
| DEPENDS on or otherwise requires it)
| gtk+3 was skipped: one of '['x11', 'wayland']' needs to be in DISTRO_FEATURES
So enable PACKAGECONFIG gtk conditionally for gstreamer1.0-plugins-good.
Signed-off-by: Kai Kang <kai.kang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
