net: dwc_eth_qos_rockchip: Add support for RK3576

Add rk_gmac_ops and other special handling that is needed for GMAC to
work on RK3576.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
index d456178..b1bc422 100644
--- a/drivers/net/dwc_eth_qos.c
+++ b/drivers/net/dwc_eth_qos.c
@@ -1620,6 +1620,10 @@
 		.data = (ulong)&eqos_rockchip_config
 	},
 	{
+		.compatible = "rockchip,rk3576-gmac",
+		.data = (ulong)&eqos_rockchip_config
+	},
+	{
 		.compatible = "rockchip,rk3588-gmac",
 		.data = (ulong)&eqos_rockchip_config
 	},