Merge branch 'net-dsa-lantiq_gswip-prepare-for-supporting-new-features'

Merge branch 'net-dsa-lantiq_gswip-prepare-for-supporting-new-features'

Daniel Golle says:

====================
net: dsa: lantiq_gswip: prepare for supporting new features

Prepare for supporting the newer standalone MaxLinear GSW1xx switch
family by refactoring the existing lantiq_gswip driver.
This is the first of a total of 3 series and doesn't yet introduce
any functional changes, but rather just makes the driver more
flexible, so new hardware and features can be supported in future.

This series has been preceded by an RFC series which covers everything
needed to support the MaxLinear GSW1xx family of switches. Andrew Lunn
had suggested to start with the 8 patches now submitted as they prepare
but don't yet introduce any functional changes.

Everything has been compile and runtime tested on AVM Fritz!Box 7490
(GSWIP version 2.1, VR9 v1.2)

Link: https://lore.kernel.org/aKDhFCNwjDDwRKsI@pidgin.makrotopia.org
====================

Link: https://patch.msgid.link/cover.1755878232.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>