Merge branch 'net-phy-move-phy-package-code-to-its-own-source-file'

Heiner Kallweit says:

====================
net: phy: move PHY package code to its own source file

This series contributes to cleaning up phylib by moving PHY package
related code to its own source file.
====================

Link: https://patch.msgid.link/5c5e60b3-0378-4960-8cf0-07ce0e219c68@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>