glx/present: Only send GLX_BufferSwapComplete for PresentCompleteKindPixmap

Present didn't provide the 'kind' argument to the
present_complete_notify hook that GLX uses to construct
GLX_BufferSwapComplete events, so GLX was reporting events for
PresentCompleteKindMSC notifications, which resulted in duplicate
GLX_BufferSwapComplete events and crashes in clutter.

See the gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=733282

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit bf338efc678258d2d366dff2ed873752f98f0bfc)
[backport to 1.16: check 'kind' in the caller to avoid ABI change]
Signed-off-by: Julien Cristau <jcristau@debian.org>
Bump to 1.16.0.901

Signed-off-by: Julien Cristau <jcristau@debian.org>