Merge branch 'net-phy-fixed_phy-replace-list-of-fixed-phys-with-static-array'

Heiner Kallweit says:

====================
net: phy: fixed_phy: replace list of fixed PHYs with static array

Due to max 32 PHY addresses being available per mii bus, using a list
can't support more fixed PHY's. And there's no known use case for as
much as 32 fixed PHY's on a system. 8 should be plenty of fixed PHY's,
so use an array of that size instead of a list. This allows to
significantly reduce the code size and complexity.
In addition replace heavy-weight IDA with a simple bitmap.
====================

Link: https://patch.msgid.link/110f676d-727c-4575-abe4-e383f98fc38f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>