ASoC: hide bind/unbind in sysfs

Exposure of driver bind/unbind to userspace via sysfs may
lead to unexpected behavior.
Hide bind and unbind by driver attribute.

Change-Id: I20d6ee653bcc16af15d6368664aaf240c6645cd0
Signed-off-by: Xiaojun Sang <xsang@codeaurora.org>
diff --git a/asoc/codecs/bolero/wsa-macro.c b/asoc/codecs/bolero/wsa-macro.c
index d1ba346..cc5b8f2 100644
--- a/asoc/codecs/bolero/wsa-macro.c
+++ b/asoc/codecs/bolero/wsa-macro.c
@@ -3008,6 +3008,7 @@
 		.owner = THIS_MODULE,
 		.pm = &bolero_dev_pm_ops,
 		.of_match_table = wsa_macro_dt_match,
+		.suppress_bind_attrs = true,
 	},
 	.probe = wsa_macro_probe,
 	.remove = wsa_macro_remove,