net/avp: remove resources when port is closed

net/avp: remove resources when port is closed

The rte_eth_dev_close() function now handles freeing resources for
devices (e.g., mac_addrs).  To conform with the new close() behaviour we
are asserting the RTE_ETH_DEV_CLOSE_REMOVE flag so that
rte_eth_dev_close() releases all device level dynamic memory.

Second level memory allocated to each individual rx/tx queue is now
freed as part of the close() operation therefore making it safe for the
rte_eth_dev_close() function to free the device private data without
orphaning the rx/tx queue pointers.

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Acked-by: Matt Peters <matt.peters@windriver.com>