drm: fix typos in comment in /gpu/drm/exynos

Correct spelling typo in drivers/gpu/drm/exynos

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 3271fd4..c97709c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1124,7 +1124,7 @@
 	 * G2D interrupt event once current command list execution is
 	 * finished.
 	 * Otherwise only ACF bit should be set to INTEN register so
-	 * that one interrupt is occured after all command lists
+	 * that one interrupt is occurred after all command lists
 	 * have been completed.
 	 */
 	if (node->event) {