drm/exynos: gsc: fix spelling mistakes

Trivial fixes to spelling mistakes "precalser" to "prescaler"
in dev_err messages

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 52a9d26..bef5798 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1610,7 +1610,7 @@ static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
 		&img_pos[EXYNOS_DRM_OPS_SRC],
 		&img_pos[EXYNOS_DRM_OPS_DST]);
 	if (ret) {
-		dev_err(dev, "failed to set precalser.\n");
+		dev_err(dev, "failed to set prescaler.\n");
 		return ret;
 	}