[][kernel][mt7988][eth][Fix USXGMII Rx Eye random fail issue]

[Description]
Fix USXGMII Rx Eye random fail issue.

If without this patch, USXGMII might get the poor RX performance
when connect wtih 2.5G/10G link partner.

[Release-log]
N/A


Change-Id: If81e7047f0518712053db71a4502698eea47e956
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6892485
diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_usxgmii.c b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_usxgmii.c
index bdd5231..f4d8db4 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_usxgmii.c
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_usxgmii.c
@@ -312,7 +312,7 @@
 		break;
 	}
 
-	mdelay(1);
+	mdelay(10);
 }
 
 int mtk_usxgmii_setup_mode_an(struct mtk_xgmii *ss, int mac_id, int max_speed)