linux-imx

drm/irq: Rename drm_crtc -> crtc

Since the original crtc parameter was renamed to pipe, there is no
longer a need to artificially prefix the CRTC parameter.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>