MAINTAINERS: Update BNA 10G Maintainer

ddutt@brocade.com bounces with 550 "RESOLVER.ADR.RecipNotFound"

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Rasesh Mody <rmody@brocade.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>