Reduce default distance to 1km

It seems like 3km distance causes extreme tx path hangs for ath9k (in
crowded areas).

Signed-off-by: Sven Eckelmann <sven@narfation.org>

patches/openwrt/0025-mac80211-Increase-default-distance-setting.patch

@@ -7,15 +7,15 @@ Signed-off-by: Sven Eckelmann <sven@narfation.org>
 Forwarded: no
 
 diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
-index 367a3e8e37a8e8435c35ca2912ef0855efbdfc78..b423c5f99de2429b9e5045b81f350bda55c9f615 100644
+index 367a3e8e37a8e8435c35ca2912ef0855efbdfc78..9e005475437402636e76aedcc79619b9c2d0d62f 100644
 --- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
 +++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
 @@ -764,7 +764,7 @@ drv_mac80211_setup() {
 
  	set_default rxantenna 0xffffffff
  	set_default txantenna 0xffffffff
 -	set_default distance 0
-+	set_default distance 3000
++	set_default distance 1000
  	set_default antenna_gain 0
 
  	[ "$txantenna" = "all" ] && txantenna=0xffffffff