[GTK][jhbuild] gst-plugins-good mixes system libsoup-gnome with custom libsoup
https://bugs.webkit.org/show_bug.cgi?id=113203

Reviewed by Philippe Normand.

We build our libsoup without GNOME support. gst-plugins-good does separate
pkg-config checks for libsoup-gnome and libsoup, causing the build to use
libsoup-gnome from the system and soup from the jhbuild prefix. This may lead to
build failures as the headers of those diverge. We do not use souphttpsrc, so
disable it when building gst-plugins-good.

* gtk/jhbuild.modules: disable soup support in gst-plugins-good.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147016 268f45cc-cd09-0410-ab3c-d52691b4dbfc