drm/bridge: sii902x: Add missing \n to the end of some dev_err messages

Trivial fix.
Some dev_err messages in this driver are missing \n, so add them.
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491877339-19913-1-git-send-email-gnuiyl@gmail.com

drivers/gpu/drm/bridge/sii902x.c

@@ -160,7 +160,7 @@ static int sii902x_get_modes(struct drm_connector *connector)
 		 time_before(jiffies, timeout));
 
 	if (!(status & SII902X_SYS_CTRL_DDC_BUS_GRTD)) {
-		dev_err(&sii902x->i2c->dev, "failed to acquire the i2c bus");
+		dev_err(&sii902x->i2c->dev, "failed to acquire the i2c bus\n");
 		return -ETIMEDOUT;
 	}
 
@@ -202,7 +202,7 @@ static int sii902x_get_modes(struct drm_connector *connector)
 
 	if (status & (SII902X_SYS_CTRL_DDC_BUS_REQ |
 		      SII902X_SYS_CTRL_DDC_BUS_GRTD)) {
-		dev_err(&sii902x->i2c->dev, "failed to release the i2c bus");
+		dev_err(&sii902x->i2c->dev, "failed to release the i2c bus\n");
 		return -ETIMEDOUT;
 	}
 
@@ -298,7 +298,7 @@ static int sii902x_bridge_attach(struct drm_bridge *bridge)
 
 	if (!drm_core_check_feature(drm, DRIVER_ATOMIC)) {
 		dev_err(&sii902x->i2c->dev,
-			"sii902x driver is only compatible with DRM devices supporting atomic updates");
+			"sii902x driver is only compatible with DRM devices supporting atomic updates\n");
 		return -ENOTSUPP;
 	}