package/avahi: configure option pygtk was renamed to pygobject
See corresponding commit:
https://github.com/lathiat/avahi/commit/
142124dae6f043085aba59fca4657c56b2b23b65
Fixes
http://autobuild.buildroot.net/results/1e9/
1e974c814ae4236077a869339be1143a9af7e5cd/
http://autobuild.buildroot.net/results/010/
0101b1205aec5a0c9c6509edf3d302aeaa3bd0ca/
http://autobuild.buildroot.net/results/572/
5721634ffa2a4544a82dda08c1fcea331ecdadaf/
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>