[][MAC80211][WiFi6][mt76][Add enable/disable Spatial Reuse through debugfs]

[Description]
Add suuport to enable/disable spatial reuse feature through debugfs.

Usage:
Disable: echo 0 > sr_enable
Enable: echo 1 > sr_enable

[Release-log]
N/A

Change-Id: I61983ab624fe6f98abed15896ff71bd47c8563ab
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7972278
1 file changed