MAINTAINERS: Update Cisco VIC driver maintainers

vkolluri@cisco.com bounces and I get "Unknown address error 550".
Signed-off-by: NIan Campbell <ian.campbell@citrix.com>
Cc: Christian Benvenuti <benve@cisco.com>
Cc: Roopa Prabhu <roprabhu@cisco.com>
Cc: David Wang <dwang2@cisco.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: netdev@vger.kernel.org
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -1757,7 +1757,6 @@ F:	Documentation/zh_CN/
 
 CISCO VIC ETHERNET NIC DRIVER
 M:	Christian Benvenuti <benve@cisco.com>
-M:	Vasanthy Kolluri <vkolluri@cisco.com>
 M:	Roopa Prabhu <roprabhu@cisco.com>
 M:	David Wang <dwang2@cisco.com>
 S:	Supported