net: dwc_eth_qos: Add mediatek support

net: dwc_eth_qos: Add mediatek support

Synopsys DWC Ethernet QOS device support for MediaTek SoCs.
in particular this initial commit adds support for Genio 520/720 and
Genio 510/700 EVKs

Signed-off-by: fanyi zhang <fanyi.zhang@mediatek.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260429-add-ethernet-support-for-genio-520-720-v4-7-be54e17239b7@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>