net: dwc_eth_qos: Add support for platform specific reset

This patch adds support for optional platform specific reset logic in
the dwc_eth_qos driver. This new function 'eqos_fix_soc_reset' is called
after the EQOS_DMA_MODE_SWR is set and before the driver waits for this
bit to clear.

Signed-off-by: Erik Schumacher <erik.schumacher@iris-sensing.com>
diff --git a/drivers/net/dwc_eth_qos.h b/drivers/net/dwc_eth_qos.h
index ce57e22..123f98d 100644
--- a/drivers/net/dwc_eth_qos.h
+++ b/drivers/net/dwc_eth_qos.h
@@ -248,6 +248,7 @@
 	int (*eqos_set_tx_clk_speed)(struct udevice *dev);
 	int (*eqos_get_enetaddr)(struct udevice *dev);
 	ulong (*eqos_get_tick_clk_rate)(struct udevice *dev);
+	void (*eqos_fix_soc_reset)(struct udevice *dev);
 };
 
 struct eqos_priv {