Packets delivered to FISA via exception err path doesnot have TLVs.
FISA handling requires additional TLVs. dp rx core handling
skips TLVs, save TLV length info in nbuf->cb so that TLVs
are recovered back in FISA.
Change-Id: I53fab2e19abcbf82697ea6f53a4ddf3ea0dd0699
CRs-Fixed: 2620844