Merge patch series "Add driver for Motorcomm YT8821 2.5G ethernet phy"

Frank Sae <Frank.Sae@motor-comm.com> says:

YT8531 as Gigabit transceiver uses bit15:14(bit9 reserved default 0) as phy
speed mask, YT8821 as 2.5 Gigabit transceiver uses bit9 bit15:14 as phy
speed mask.

Be compatible to YT8821, reform phy speed mask and phy speed macro.

Based on update above, add YT8821 2.5G phy driver.

Link: https://lore.kernel.org/r/20240912120225.28884-1-Frank.Sae@motor-comm.com