MAINTAINERS: add netdev to ATM

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -779,6 +779,7 @@ ATM
 P:	Chas Williams
 M:	chas@cmf.nrl.navy.mil
 L:	linux-atm-general@lists.sourceforge.net (subscribers-only)
+L:	netdev@vger.kernel.org
 W:	http://linux-atm.sourceforge.net
 S:	Maintained