[][MAC80211][mt76][refactor internal patch]

[Description]
Refactor internal patch to make it git-am friendly

[Release-log]
N/A

Change-Id: Iebfd4c0f74a67f6643738fa17dcfc72ff7eaa309
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6783100
11 files changed