qede: Fix XDP memory leak on unload

When (re|un)loading, Tx-queues belonging to XDP would not get freed.

Fixes: cb6aeb07

 ("qede: Add support for XDP_TX")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>