[][kernel][common][eth][Fix GMAC data corruption issue]

[Description]
Fix GMAC data corruption issue.

If without this patch, kernel might receive invalid packets that are corrupted by GMAC.

[Release-log]
N/A

Change-Id: I8a9f00402e4b8d9181a8c4c518665a16619cdc0a
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6398721
1 file changed