ARM: dts: sun8i: a83t: Enable both RGMII RX/TX delay on Ethernet PHY

ARM: dts: sun8i: a83t: Enable both RGMII RX/TX delay on Ethernet PHY

Origin: https://git.kernel.org/linus/57dbe558457bf4042169bc1f334e3b53a8480a1c
Bug-Debian: https://bugs.debian.org/973369

The Ethernet PHY on the Bananapi M3 and Cubietruck Plus have the RX
and TX delays enabled on the PHY, using pull-ups on the RXDLY and
TXDLY pins.

Fix the phy-mode description to correct reflect this so that the
implementation doesn't reconfigure the delays incorrectly. This
happened with commit bbc4d71d6354 ("net: phy: realtek: fix rtl8211e
rx/tx delay config").

Fixes: 039359948a4b ("ARM: dts: sun8i: a83t: Enable Ethernet on two boards")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://lore.kernel.org/r/20201024162515.30032-6-wens@kernel.org
Gbp-Pq: Topic bugfix/arm
Gbp-Pq: Name ARM-dts-sun8i-a83t-Enable-both-RGMII-RX-TX-delay-on-.patch