Merge branch 'net-phy-make-phy_package-a-separate-module'

Heiner Kallweit says:

====================
net: phy: make phy_package a separate module

Only a handful of PHY drivers needs the PHY package functionality,
therefore make it a separate module which is built only if needed.
====================

Link: https://patch.msgid.link/eec346a4-e903-48af-8150-0191932a7a0b@gmail.com


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