net: fddi: skfp: smt: Remove extra parameters to vararg macro

cppcheck reports
[drivers/net/fddi/skfp/smt.c:750]: (warning) printf format string requires 0 parameters but 2 are given.

DB_SBAN is a vararg macro, like DB_ESSN.  Remove the extra args and the nl.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>