enic: Fix Kconfig headline description

I don't think the enic driver has anything to do with Mark Everett
(http://en.wikipedia.org/wiki/A_Man_Called_E).  Fix the Kconfig
description.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>