i915: Actually enable __DRI2rendererQueryExtensionRec
i915: Actually enable __DRI2rendererQueryExtensionRec

More rebase fail.  This code was written long before i915 and i965 were
split, so most of the code in i9[16]5/intel_screen.c only needed to
exist in one place.  It looks like I fixed n-1 of those places after
rebasing on the split.

I only found this from the defined-but-not-used warning for
intelRendererQueryExtension.  I noticed this while fixing the other,
related warnings.

(Note: During review, we decided to *not* pick this back to 10.0.)

Signed-off-by: Ian Romanick <2b237cafb16dc45038e85df6c85e74e6d899eba9@intel.com>
Cc: Daniel Vetter <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@ffwll.ch>
Reviewed-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Acked-by: Paul Berry <de21b9f22e6dd0bdf7890875d6e07ef4967c44ce@gmail.com>

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