[qca-nss-sfe] add fast xmit features

call hard start xmit in some case that no vlan tag exist,
won't go to xfrm nor qdisc exist.

Change-Id: I94104b0ce8d0e86ee6e63dc401ec042351ef63c7
Signed-off-by: Ken Zhu <quic_guigenz@quicinc.com>
12 files changed