Merge branch 'net-net-add-negotiation-of-in-band-capabilities-remainder'

Russell King says:

====================
net: net: add negotiation of in-band capabilities (remainder)

Here are the last three patches which were not included in the non-RFC
posting, but were in the RFC posting. These add the .pcs_inband()
method to the Lynx, MTK Lynx and XPCS drivers.
====================

Link: https://patch.msgid.link/Z1F1b8eh8s8T627j@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>