Merge branch 'add-built-in-2-5g-ethernet-phy-support-on-mt7988'

Sky Huang says:

====================
Add built-in 2.5G ethernet phy support on MT7988

From: Sky Huang <skylake.huang@mediatek.com>

This patchset adds support for built-in 2.5Gphy on MT7988, sort file
and config sequence in related Kconfig and Makefile.
====================

Link: https://patch.msgid.link/20250516102327.2014531-1-SkyLake.Huang@mediatek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>