net/mlx5: handle LRO packets in Rx queue

net/mlx5: handle LRO packets in Rx queue

When LRO offload is configured in Rx queue, the HW may coalesce TCP
packets from same TCP connection into single packet.

In this case the SW should fix the relevant packet headers because the
HW doesn't update them according to the new created packet
characteristics.

Add update header code to the mprq Rx burst function to support LRO
feature.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>