msm: ipa: Added an option to enable NAPI in 11ad

Added a flag in the 11ad driver to indicate if NAPI is
enabled in the LAN RX Datapath. In case the flag is true
the 11ad driver will now use napi_gro_receive instead of
netif_rx_ni, meaning the GRO feature is also enabled
with this change.

Acked-by: Tal Gelbard <tgelbard@qti.qualcomm.com>
Change-Id: I5c6cb3e08c29c4b79cdcbc9e4d3acb485156a607
Signed-off-by: Amir Levy <alevy@codeaurora.org>