[][mt7981: drivers: net: phy: Fix return flow to attach phy correctly]

[Description]
Fix return flow to attach phy correctly.

[Release-log]
N/A

Change-Id: I8d58297c14711eafbbd94c9688adf03244718037
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5336475
1 file changed