Merge branch 'net-phy-bcm5481x-add-support-for-broadr-reach-mode'

Kamil Horák says:

====================
net: phy: bcm5481x: add support for BroadR-Reach mode

PATCH 1 - Add the 10baseT1BRR_Full link mode

PATCH 2 - Add the definitions of LRE registers, necessary to use
   BroadR-Reach modes on the BCM5481x PHY

PATCH 3 - Add brr-mode flag to switch between IEEE802.3 and BroadR-Reach

PATCH 4 - Implementation of the BroadR-Reach modes for the Broadcom
   PHYs
====================

Link: https://patch.msgid.link/20240712150709.3134474-1-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>