UBUNTU: Remove obsolete bnx2x firmware files

BugLink: http://bugs.launchpad.net/bugs/1558135

Old files will not be used by the xenial 4.4 kernel, so remove
them. Also update the files in nic-firmware.lst.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>

debian/nic-firmware.lst

@@ -52,9 +52,6 @@ zd1211/zd1211b_ur
 zd1211/zd1211_ub
 zd1211/zd1211_uphr
 zd1211/zd1211_ur
-bnx2x/bnx2x-e1-7.8.19.0.fw
-bnx2x/bnx2x-e1h-7.8.19.0.fw
-bnx2x/bnx2x-e2-7.8.19.0.fw
-bnx2x/bnx2x-e1-7.10.51.0.fw
-bnx2x/bnx2x-e1h-7.10.51.0.fw
-bnx2x/bnx2x-e2-7.10.51.0.fw
+bnx2x/bnx2x-e1-7.12.30.0.fw
+bnx2x/bnx2x-e1h-7.12.30.0.fw
+bnx2x/bnx2x-e2-7.12.30.0.fw