In principle this allows core SSL code to be used with e.g., wiznet
or airlift sockets. It might actually be useful with wiznet ethernet devices
(it's probably not with airlift)
the mbedtls version is a bit different so there are some new #ifdefs
needed.
Tested with the ssl test from https://github.com/adafruit/circuitpython/issues/8910
on Adafruit MatrixPortal S3 (no pico w testing done)
