[][kernel][mt7988][eth][phy: mediatek-2p5ge: Fix duplex detection]

[Description]
Fix duplex detection

[Release-log]
N/A

Change-Id: Icfe1246bc65baeebc282cbbefe10f97fed1dd97e
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7361226
1 file changed