[][kernel][common][switch][Add 2500base-x for mt753x mac port setting]

[Description]
Add 2500base-x for switch mac port setting

[Release-log]
N/A


Change-Id: Id8350e57b2fdf7a6f244e55a1be239ef6c690750
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9621048
diff --git a/21.02/files/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt7531.c b/21.02/files/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt7531.c
index 4cfb0ef..d79b5fe 100755
--- a/21.02/files/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt7531.c
+++ b/21.02/files/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt7531.c
@@ -491,6 +491,7 @@
 		mt7531_set_port_rgmii(gsw, port);
 		break;
 	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_2500BASEX:
 		if (port_cfg->force_link)
 			mt7531_set_port_sgmii_force_mode(gsw, port, port_cfg);
 		else