[][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
1 file changed