arm64: dts: rockchip: Add mdio and ethernet-phy nodes to rk3308-rock-pi-s

arm64: dts: rockchip: Add mdio and ethernet-phy nodes to rk3308-rock-pi-s

Be explicit about the Ethernet port and define mdio and ethernet-phy
nodes in the device tree for ROCK Pi S.

Fixes: bc3753aed81f ("arm64: dts: rockchip: rock-pi-s add more peripherals")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-8-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[ upstream commit: 4b64ed510ed946a4e4ca6d51d6512bf5361f6a04 ]

(cherry picked from commit 703b8eae20eec5dbb0e52f0e1fb71e712c007dae)
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>