qed: Fix VF removal sequence

After previos changes in HW-stop scheme, VFs stopped sending CLOSE
messages to their PFs when they unload.

Fixes: 1226337a ("qed: Correct HW stop flow")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>