data-kernel: EMAC: Check NAPI before calling netif_rx_skb

Changes to check if NAPI is enabled and then call
netif_rx_skb, else follow the legacy way of calling
netif_rx_ni.

Acked-by: Abhishek Chauhan <abchauha@qti.qualcomm.com>
Signed-off-by: Sunil Paidimarri <hisunil@codeaurora.org>