This reverts commit 5356462ce5.
Kernel switching to fw_devlink=on as default broke probing some devices.
Revert it until we get a proper fix.
It seemed that mtd OF_POPULATED hack resolved probing issues but
apparently not all of them. We got reports about reading MAC using NVMEM
not working and USB controllers not working.
Ref: #10232Fixes: #13412
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>