Backport a bunch of upstream commits simplifying the RealTek PHY driver
and re-unifying the C22 and C45 driver instances.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Add a new microchipsw target aimed add supporting Microchip switch
SoC-s.
Start by supporting LAN969x SoC-s as the first subtarget.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>