Add support for the following APIs
* netif_napi_add
* netif_napi_del
* napi_consume_skb
* netif_wake_subqueue
* netif_receive_skb
* napi_gro_receive
* __napi_alloc_skb
* eth_type_trans

Enable interrupt for only one tx/rx queue and enable a sort of napi polling at
LCD end. In contrast to napi polling, this polling never switches to interrupt
mode. Polling is shutdown when the device is removed

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