media: mediatek: vcodec: remove unneeded semicolon

Eliminate the following coccicheck warning:
./drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c:71:2-3: Unneeded semicolon
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c

@@ -68,7 +68,7 @@ static bool mtk_vdec_get_cap_fmt(struct mtk_vcodec_ctx *ctx, int format_index)
 	default:
 		ret = true;
 		break;
-	};
+	}
 
 	return ret;
 }