[][kernel][mt7986][eth][reset access invalid address]

[Description]
Fix issue that access invalid address(usxgmii)
move api:mtk_dump_usxgmii from mtk_sgmii.c to mtk_usxgmii.c

[Release-log]
N/A


Change-Id: I6d1caf7d935dfe361c0f035c5e322341fc3a05cf
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7115763
3 files changed