drm/i915: Fix comment about our plane remapping on gen2/3

Spotted while crawling around in the area.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2fdbedf..a514779 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11339,7 +11339,7 @@
 
 	/*
 	 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
-	 * is hooked to plane B. Hence we want plane A feeding pipe B.
+	 * is hooked to pipe B. Hence we want plane A feeding pipe B.
 	 */
 	intel_crtc->pipe = pipe;
 	intel_crtc->plane = pipe;