ARM64: dts: amlogic: enable ethernet on all Tronsmart Vega S95 devices

All of these have a Realtek Gbit RGMII PHY.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>