drm/exynos: fixed exynos broken ioctl

this patch removes the pointer of uint64_t *edid. it should be just
a uint64_t.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>

include/drm/exynos_drm.h

@@ -85,7 +85,7 @@ struct drm_exynos_gem_mmap {
 struct drm_exynos_vidi_connection {
 	unsigned int connection;
 	unsigned int extensions;
-	uint64_t *edid;
+	uint64_t edid;
 };
 
 struct drm_exynos_plane_set_zpos {