drm/bridge: fix semicolon.cocci warnings

drivers/gpu/drm/bridge/sil-sii8620.c:988:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161026165836.GA98907@lkp-sb04.lkp.intel.com

drivers/gpu/drm/bridge/sil-sii8620.c

@@ -985,7 +985,7 @@ static void sii8620_set_mode(struct sii8620 *ctx, enum sii8620_mode mode)
 	default:
 		dev_err(ctx->dev, "%s mode %d not supported\n", __func__, mode);
 		break;
-	};
+	}
 
 	sii8620_set_auto_zone(ctx);