bnx2x: Fix VF MAC removal

bnx2x: Fix VF MAC removal

Orabug: 22066196

There's a bug in today's driver where VF requests to add/remove MAC filters
always reach the Hypervisor as add requests.
This prevents the VF from changing its MAC address, as it cannot remove the
previously configured MAC and runs out of MAC credits.

Signed-off-by: Shahed Shaikh <Shahed.Shaikh@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit bb9e9c1d2093135f55bf72697498b3eb6137b66b)

Signed-off-by: Dan Duval <dan.duval@oracle.com>