[][kernel][mt7986][eth][Rollback to original GPY211 PHY driver]

[Description]
Rollback to original GPY211 PHY driver.

If without this patch, GPY211's TPI link down/up events may cause HSGMII abnormal in the MSP test environment.

[Release-log]
N/A

Change-Id: Ia884bc7dd2ae9e495eb8863ff6bab862ae64d1e6
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6432946
11 files changed