Set SSH timeout to 1 second.

Previous versions of Cryptlib defaulted to a zero second timeout... this
is no longer the case as it appears to be 15 seconds now.  Setting it to
zero makes it not work at all.

src/syncterm/ssh.c

@@ -264,6 +264,8 @@ int ssh_connect(struct bbslist *bbs)
 	/* Pass socket to cryptlib */
 	status=cl.SetAttribute(ssh_session, CRYPT_SESSINFO_SSH_HEIGHT, rows);
 
+	cl.SetAttribute(ssh_session, CRYPT_OPTION_NET_READTIMEOUT, 1);
+
 	/* Activate the session */
 	uifc.pop(NULL);
 	uifc.pop("Activating Session");