imx8mm-cl-iot-gate: Add support for the Realtek RTL8211E PHY

Newer imx8mm-cl-iot-gate versions are populated with a Realtek RTL8211E
PHY instead of the Atheros AR8033.

Adapted Compulab's patch from:
https://github.com/compulab-yokneam/meta-bsp-imx8mm/blob/iot-gate-imx8_5.10.72/recipes-bsp/u-boot/compulab/imx8mm/0125-imx8mm-net-enable-phy-Realtek-RTL8211E.patch

to support both PHYs in U-Boot.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2 files changed