This patch adds,
    - Transmit
    - Transmit completion poll
    - Receive poll
    - NAPI handler

and enables the driver.
Signed-off-by: NIyappan Subramanian <isubramanian@apm.com>
Signed-off-by: NKeyur Chudgar <kchudgar@apm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>