Enable the following function pointers:
* ndo_open
* ndo_stop
* ndo_start_xmit
* ndo_set_rx_mode
* ndo_validate_addr
* ndo_set_mac_address
* ndo_change_mtu
* ndo_tx_timeout
* ndo_set_tx_maxrate
* ndo_get_stats64

Add missing dev_addr_add function as well. Remove VLAN features from ixgbe (to
be explored in the future)

Signed-off-by: Vikram Narayanan <vikram186@gmail.com>