[rdkb][common][config][Add feature flag wifi_eht for wifi7 support]

[Description]
1. Add feature flag wifi_eht for wifi7 support
2. refactor wifi sync flow

[Release-log]

Change-Id: I907cd7ac19fd32a8bb8c316b997f0ffa0815f522
diff --git a/mtk_scripts/filogic-sync-openwrt-wifi.sh b/mtk_scripts/filogic-sync-openwrt-wifi.sh
index 0a4c116..770b4a2 100755
--- a/mtk_scripts/filogic-sync-openwrt-wifi.sh
+++ b/mtk_scripts/filogic-sync-openwrt-wifi.sh
@@ -159,6 +159,7 @@
 
 echo "copy.........."
 cp -rfa mtk_openwrt_feeds/autobuild_mac80211_release/package/ mac80211_package/
+cp -rfa mtk_openwrt_feeds/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211 mac80211_package/package/kernel/
 
 echo "gen wifi7 mac80211 patches.........."
 cp meta-cmf-filogic/mtk_scripts/rdkb_inc_helper mac80211_package/package/kernel/mac80211/patches