Add bnx2 to nic-modules

[Kyle McMartin]

BNX2 is built on all arches already, might as well include it on all
of them as well...

Fixes https://launchpad.net/distros/ubuntu/+bug/73647.

Signed-off-by: Kyle McMartin <kyle at ubuntu.com>

diff --git a/debian/d-i/modules/nic-modules b/debian/d-i/modules/nic-modules
index c7187f2..3de4d67 100644
--- a/debian/d-i/modules/nic-modules
+++ b/debian/d-i/modules/nic-modules
@@ -27,6 +27,7 @@ atmel_pci ?
 b44 ?
 bcm43xx ?
 bmac ?
+bnx2
 bonding ?
 cassini ?
 com20020 ?