codecs: reduce error log rate

Huge volume of log prints out at error. Reduce the redundant log.

Change-Id: I761d5953614d039b7a725926c38adee1beeeec41
Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>

dsp/codecs/audio_alac.c

@@ -1,6 +1,15 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  */
 
 #include <linux/types.h>
@@ -290,7 +299,7 @@ static int audio_open(struct inode *inode, struct file *file)
 	}
 	rc = audio_aio_open(audio, file);
 	if (rc < 0) {
-		pr_err("%s: audio_aio_open rc=%d\n",
+		pr_err_ratelimited("%s: audio_aio_open rc=%d\n",
 			__func__, rc);
 		goto fail;
 	}