dawn: update to latest version

Includes:
-  ubus: fix wrong parsing policy

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:=2020-06-05
+PKG_SOURCE_DATE:=2020-06-06
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/berlin-open-wireless-lab/DAWN.git
-PKG_SOURCE_VERSION:=2151db28ef24c856be1ffad836a7d20afdd9fba1
-PKG_MIRROR_HASH:=822147f494987d51bfda4b44bfb6d221ea0c0f76cf9ea726810a6f6d6dfbff78
+PKG_SOURCE_VERSION:=534f7866160bcd7d398827e540a564c2636d4a71
+PKG_MIRROR_HASH:=1c7194f9b595c101394b8d411e536d540d813452c1a11314afad6da0310a1668
 
 PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
 PKG_LICENSE:=GPL-2.0-only