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>

dsp/q6core.c

@@ -1907,6 +1907,7 @@ static struct platform_driver q6core_driver = {
 		.name = "q6core_audio",
 		.owner = THIS_MODULE,
 		.of_match_table = q6core_of_match,
+		.suppress_bind_attrs = true,
 	}
 };