Match the Promise SANLink3 T1 adapter

This change provides minimal support for the SANLink3 T1 Thunderbolt3
NBase-T adapter (https://www.promise.com/Products/SANLink/SANLink3-T1),
which has the TN4025 with an AQR105 inside it.

The interface comes up, does negotiation, brings up link at 10 Gbit/s
and achieves OK throughput (8 Gbit/s).  The modest throughput might be
related to errors that are periodically logged by the driver:

  [462738.525551] rxd_err = 0x4
  [462738.670364] rxd_err = 0x4
  ...

I didn't have any NBase-T switches offhand to test 2.5G or 5G rates,
so I don't know if that works.

This change didn't work earlier on the 0.3.6.15 driver, so I suspect
it requires the 2.b.e2 AQR105 firmware mentioned in release_notes.