xsigo: EoiB QP support

xsigo: EoiB QP support

Orabug: 24508359

1) Enable EoiB QP property for uVNIC's created on Titan
   card using is_eoib variable.
2) Use qkey provided by OFOS for EoIB QP, this QKEY comes
   as part of VNIC Install message.
3) If Titan Card has TSO enabled then enable TSO using
   NETIF_F_TSO flag and notify upstream network stack about this
4) If Titan has Checksum offload feature then notify network stack.
   about this and on each WR set IB_SEND_IP_CSUM bit.
5) Added some Debug Flags
6) Printing Qkey information and EoiB information in proc stats

Reported-by: Pradeep Gopanapalli <pradeep.gopanapalli@oracle.com>
Signed-off-by: Pradeep Gopanapalli <pradeep.gopanapalli@oracle.com>
Reviewed-by: sajid zia <szia@oracle.com>