drm: fix trivial typo mistake

Signed-off-by: John Hunter <zhjwpku@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
John Hunter 2015-04-14 17:07:22 +08:00 • committed by Daniel Vetter
commit 2b1193d528