PPE flowtable offload on ipq807x (was: packet steering and bidirectional forwarding on ipq807x)

[John Macias]

Hi Robert,

You're right, thanks. I missed #24806: I built on main, where qca_ppe
has no flow table support yet, and didn't check the open pull requests.
It does everything mine does, through the same TC_SETUP_FT path from
the conduit, and much more (PPPoE, VLAN, GRE, Wi-Fi through the CPU
port, shaping). It even leaves the TCP_SPECIAL bypass off for the same
reason I did.

I'll close #26176. The only thing it adds is a result on IPQ8074 v1
silicon (RAX120 v1, rev 1.2), so I'll test #24806 on that board and
report on Julius's pull request instead.

John