dawn: feed hostapd with nr reports and improve 802.11k handling

If set_hostapd_nr config flag is set, dawn will insert the nr reports
to allow the hostapd to answer to nr requests from clients.

Improve the synchronization of rcpi and rsni in the network.
Further, clients with bad 802.11k were sending beacon reports with
bssid 00:00:00:00:00:00. Catch those corner cases.

Signed-off-by: Nick Hainke <vincent@systemli.org>

net/dawn/Makefile

@@ -5,13 +5,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dawn
-PKG_SOURCE_DATE:=2020-04-16
+PKG_SOURCE_DATE:=2020-04-17
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/berlin-open-wireless-lab/DAWN.git
-PKG_SOURCE_VERSION:=1804d18bf5e9a334d049ba142d250b1e4f749dd7
-PKG_MIRROR_HASH:=ba8391628e961c737e056d4f3fa364cc794fb917a815918c8fb5762b59835b69
+PKG_SOURCE_VERSION:=2ff3b3017fc5e5477f494e6aa85d6b0b4acd68bb
+PKG_MIRROR_HASH:=b9260dad56f40a371157a6d9c54ac295bdbfc5f853915df18e4152eb8f3110f9
 
 PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
 PKG_LICENSE:=GPL-2.0-only

net/dawn/files/dawn.config

@@ -54,6 +54,7 @@ config metric
     option use_driver_recog     '1'
     option min_number_to_kick   '3'
     option chan_util_avg_period '3'
+    option set_hostapd_nr       '1'
     option op_class             '0' #802.11k stuff...
     option duration             '0'
     option mode                 '0'