MAINTAINERS: add netdev list for PTP (IEEE 1588)

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -6310,6 +6310,7 @@ F:	drivers/acpi/apei/erst.c
 
 PTP HARDWARE CLOCK SUPPORT
 M:	Richard Cochran <richardcochran@gmail.com>
+L:	netdev@vger.kernel.org
 S:	Maintained
 W:	http://linuxptp.sourceforge.net/
 F:	Documentation/ABI/testing/sysfs-ptp