Don't log confusing message on reconnect by default

Change the following message (which can occur on reconnect) from
a warning to an FYI message.  It is confusing to users.

   [58360.523634] CIFS VFS: Free previous auth_key.response = 00000000a91cdc84

By default this message won't show up on reconnect unless the user bumps
up the log level to include FYI messages.

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>

fs/cifs/connect.c

@@ -4306,7 +4306,7 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 		 server->sec_mode, server->capabilities, server->timeAdj);
 
 	if (ses->auth_key.response) {
-		cifs_dbg(VFS, "Free previous auth_key.response = %p\n",
+		cifs_dbg(FYI, "Free previous auth_key.response = %p\n",
 			 ses->auth_key.response);
 		kfree(ses->auth_key.response);
 		ses->auth_key.response = NULL;