dawn: update to latest version

Includes:
-  uci: truncate hostname at first dot
-  ubus/uci/datastorage: add iface and hostname
-  ubus: use strncpy and add backwards compatibility

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

net/dawn/Makefile

@@ -5,13 +5,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dawn
-PKG_SOURCE_DATE:=2020-06-08
+PKG_SOURCE_DATE:=2020-06-10
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/berlin-open-wireless-lab/DAWN.git
-PKG_SOURCE_VERSION:=050c1d7fed624161d29b09f1b46708d342496012
-PKG_MIRROR_HASH:=e831b2cf9db8827498a0d460004a9e1a512cd015f216c418008d0d29f1d2e145
+PKG_SOURCE_VERSION:=bd35961de8f963b06913290356a6cd44a42a41fe
+PKG_MIRROR_HASH:=bba0758b0906db4af1e6ee8884946747c1e728bf6a51c5fcbaf09e1f1b7e0bdc
 
 PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
 PKG_LICENSE:=GPL-2.0-only