slapos/obs: Small workarround to get python working

  This is a workarround, perhaps a cleaner solution can be consider

component/slapos/obs.cfg

@@ -85,6 +85,7 @@ make-options =
 
 [gobject-introspection]
 pre-configure =
+  ln -s ${python2.7:location}/bin/python2.7 ${python2.7:location}/bin/python2.
   sed -i 's#!/opt/slapos/parts/python2.7/bin/python2.7#!${python2.7:location}/bin/python2.7#' ${python2.7:location}/bin/python-config
   libtoolize -c -f
   aclocal -I${pkgconfig:location}/share/aclocal -I${gettext:location}/share/aclocal -I${libtool:location}/share/aclocal -I${glib:location}/share/aclocal