gnunet: update source

fixes namestore iterator and other bugs when using PostgreSQL

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

net/gnunet/Makefile

@@ -1,10 +1,10 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gnunet
-PKG_SOURCE_VERSION:=55b06f18c66ede06a2cf437b652de3a7c75c902a
-PKG_MIRROR_HASH:=c19c5ae2c583aee69a66f35140bd41336ec4944fa6e99e3a47498d5c50aeaf11
+PKG_SOURCE_VERSION:=d7547ab18052726a69ee088876389a18798e03a8
+PKG_MIRROR_HASH:=c3e8d545e1e9fa33a92bf392c4d090416b3a0d672c2403d732dc0c043505e4fa
 
-PKG_VERSION:=0.10.2-git-20170608-$(PKG_SOURCE_VERSION)
+PKG_VERSION:=0.10.2-git-20170623-$(PKG_SOURCE_VERSION)
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz