fix cogl pkgconfig file

[Jani Monoses]

On ARM, where the Cogl EGL backend is selected, the resulting SO is intentionally misnamed libclutter-glx instead of libclutter-egl for drop-in compatibility.
While the clutter-1.0.pc file correctly depends on this new name, cogl-1.0.pc depends on libclutter-egl which is not found by the linker. gnome-games on ARM FTBFS because of this, see
https://bugs.launchpad.net/ubuntu/+source/gnome-games/+bug/747046
A fixed package is in the upload moderation queue.

[Martin Pitt (pitti)]

Nothing to do for release team here, subscribing sponsors instead.

[Jani Monoses (jani)]

I have already uploaded the package, I subscribed release team for the freeze exception, to provide more details than the changelog.

[Sebastien Bacher (seb128)]

unsubsribing the sponsors since that doesn't need sponsoring

[Sebastien Bacher (seb128)]

Just to clarify there is no need to ask a freeze exception for bug fixes, just upload with an explanation in the changelog, the diff will be review from the queue

[Martin Pitt (pitti)]

 clutter-1.0 (1.6.14-0ubuntu3) natty; urgency=low
 .
   * debian/patches/fix_soname_infix_in_cogl_pc_file.patch: Use libclutter-glx
     as a dependency in cogl.pc.in since we provide that name instead of libclutter-egl now.
     This should fix builds of packages using the EGL backend on ARM.