[][MAC80211][core][refine backports patches]

[Description]
Refactor backports patches and apply new naming rule.

[Release-log]
N/A

Change-Id: I04fb82509f18341989ce381ad1f1e53f5ec2d4ee
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7135679
32 files changed