Merge branch 'convert-lan78xx-driver-to-the-phylink'

Oleksij Rempel says:

====================
convert lan78xx driver to the PHYLINK

This series converts the lan78xx driver to use the PHYLINK framework,
which enhances PHY and MAC management. The changes also streamline the
driver by removing unused elements and improving link status reporting.

This is the final part of the previously split conversion series:
https://lore.kernel.org/all/20250428130542.3879769-1-o.rempel@pengutronix.de/

Tested on EVB_LAN7850.
====================

Link: https://patch.msgid.link/20250618122602.3156678-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>