GLX/OML: honor OML semantics even if target, divisor and remainder are 0

GLX/OML: honor OML semantics even if target, divisor and remainder are 0

This change passes a remainder of 1 to the server with the
DRI2SwapBuffers request, causing it to honor the OML semantics for the
swap rather than falling through to glXSwapBuffers behavior.  The
remainder actually ends up ignored since the divisor is 0, but we need
to differentiate the OML and standard behavior somehow.

Reported-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>