dawn: bump version

test_storage: fix compilation with musl 1.2.0
datastorage/test: improve scalability and performance
datastorage: fixed use of wrong client search
general: add memory auditing
memory auditing: bug fixes to memory auditing and hearing map
datastorage: fixes to linked list handling
tcpsocket: fix read callback function and arbitrary memory allocations
tcpsocket: leave loop if we read 0 byte

Furthermore, you can now dump the memory usage by sending a SIGHUP to
dawn process.

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:=2020-07-12
+PKG_SOURCE_DATE:=2020-08-07
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/berlin-open-wireless-lab/DAWN.git
-PKG_SOURCE_VERSION:=32640de37836f674429aab1ff06f26c27c2c0986
-PKG_MIRROR_HASH:=82d55383d6594dae46f2eb11b65f217f3e994e3ce3d655aa1c5a7ac80a5c8d63
+PKG_SOURCE_VERSION:=50d54a625366cffd48f0ec3f23456d5a04c45fd3
+PKG_MIRROR_HASH:=cdea4f6ff0209afa0320e143043e0417fd6d65c349651e491f6023affd39fa10
 
 PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
 PKG_LICENSE:=GPL-2.0-only