drm/i915: s/\<rq\>/req/g

The merged seqno->request conversion from John called request
variables req, but some (not all) of Chris' recent patches changed
those to just rq. We've had a lenghty (and inconclusive) discussion on
irc which is the more meaningful name with maybe at most a slight bias
towards req.

Given that the "don't change names without good reason to avoid
conflicts" rule applies, so lets go back to a req everywhere for
consistency. I'll sed any patches for which this will cause conflicts
before applying.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Harrison <John.C.Harrison@Intel.com>
[danvet: s/origina/merged/ as pointed out by Chris - the first
mass-conversion patch was from Chris, the merged one from John.]
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c97b496..7ef22db 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10785,14 +10785,14 @@
 	struct intel_mmio_flip *mmio_flip =
 		container_of(work, struct intel_mmio_flip, work);
 
-	if (mmio_flip->rq)
-		WARN_ON(__i915_wait_request(mmio_flip->rq,
+	if (mmio_flip->req)
+		WARN_ON(__i915_wait_request(mmio_flip->req,
 					    mmio_flip->crtc->reset_counter,
 					    false, NULL, NULL));
 
 	intel_do_mmio_flip(mmio_flip->crtc);
 
-	i915_gem_request_unreference__unlocked(mmio_flip->rq);
+	i915_gem_request_unreference__unlocked(mmio_flip->req);
 	kfree(mmio_flip);
 }
 
@@ -10809,7 +10809,7 @@
 	if (mmio_flip == NULL)
 		return -ENOMEM;
 
-	mmio_flip->rq = i915_gem_request_reference(obj->last_write_req);
+	mmio_flip->req = i915_gem_request_reference(obj->last_write_req);
 	mmio_flip->crtc = to_intel_crtc(crtc);
 
 	INIT_WORK(&mmio_flip->work, intel_mmio_flip_work_func);