net/bnxt: fix mark id update to mbuf

net/bnxt: fix mark id update to mbuf

When a packet is looped back from VF to VFR, it is marked to identify
the VFR interface. However, this mark_id shouldn't be percolated up to
the OVS as it is internal to pmd.
This patch fixes it by skipping mark injection into mbuf if the packet
is received on VFR interface.

Fixes: 6dc83230b43b ("net/bnxt: support port representor data path")

Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>