net: ftgmac100: Add Aspeed AST2600 support

Add support of the MAC controller of Aspeed AST2600 SOC.  The MAC
controller is the same with AST2500, except it has stand-alone MDIO
hardware block.

Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/ftgmac100.c b/drivers/net/ftgmac100.c
index b6e9526..aa719d2 100644
--- a/drivers/net/ftgmac100.c
+++ b/drivers/net/ftgmac100.c
@@ -644,6 +644,7 @@
 static const struct udevice_id ftgmac100_ids[] = {
 	{ .compatible = "faraday,ftgmac100",  .data = FTGMAC100_MODEL_FARADAY },
 	{ .compatible = "aspeed,ast2500-mac", .data = FTGMAC100_MODEL_ASPEED  },
+	{ .compatible = "aspeed,ast2600-mac", .data = FTGMAC100_MODEL_ASPEED  },
 	{ }
 };