linux-imx

IB/usnic: Port over sysfs to new usnic_fwd.h

This patch ports usnic_ib_sysfs.c to the new interface of
usnic_fwd.h.

Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>