MAINTAINERS: change netxen_nic maintainers

I will no longer maintain netxen_nic driver.
Sony Chacko and Rajesh Borundia are taking over.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -4495,7 +4495,8 @@ F:	include/linux/if_*
 F:	include/linux/*device.h
 
 NETXEN (1/10) GbE SUPPORT
-M:	Amit Kumar Salecha <amit.salecha@qlogic.com>
+M:	Sony Chacko <sony.chacko@qlogic.com>
+M:	Rajesh Borundia <rajesh.borundia@qlogic.com>
 L:	netdev@vger.kernel.org
 W:	http://www.qlogic.com
 S:	Supported