[ Upstream commit 924726888f660b2a86382a5dd051ec9ca1b18190 ]

The rk3328-roc-cc board exhibits tx stability issues with large packets,
as does the rock64 board, which was fixed with this patch
https://patchwork.kernel.org/patch/10178969/

A similar patch was merged for the rk3328-roc-cc here
https://patchwork.kernel.org/patch/10804863/
but it doesn't include the tx/rx_delay tweaks, and I find that they
help with an issue where large transfers would bring the ethernet
link down, causing a link reset regularly.
Signed-off-by: NLeonidas P. Papadakos <papadakospan@gmail.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NSasha Levin <sashal@kernel.org>