dawn: bump version

Includes:
- datastorage: fix hearingmap not synced

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:=2020-08-21
+PKG_SOURCE_DATE:=2020-08-26
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/berlin-open-wireless-lab/DAWN.git
-PKG_SOURCE_VERSION:=25a493c4384e00027cc0f38465ea19d2555b036e
-PKG_MIRROR_HASH:=2f959d5ad60d14224c1dc1bb77fe998cc909c69480dc444c89a7071dc5c8dbea
+PKG_SOURCE_VERSION:=c2c0009d613a59e282c9ee429928bf1b7edea025
+PKG_MIRROR_HASH:=620059cad972ab0c6dc313995bf059dc0f470eeb1eae2d1f3b4d1bac34a21d36
 
 PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
 PKG_LICENSE:=GPL-2.0-only