urngd: move project to git.openwrt.org

Let's move project to a proper place.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit bec8fb1ee7188bfe7eff0f39e060039623e2575e)

package/system/urngd/Makefile

@@ -4,10 +4,10 @@ PKG_NAME:=urngd
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL=https://github.com/ynezz/openwrt-urngd
-PKG_SOURCE_DATE:=2019-05-27
-PKG_SOURCE_VERSION:=41e4163b2e7f4c1c1f51cdfa487d6052ff859cf2
-PKG_MIRROR_HASH:=303595b7ec7367264a159dbd26d1d18c7ee3cf5e10bab25a315a7ec621b80ab4
+PKG_SOURCE_URL=https://git.openwrt.org/project/urngd.git
+PKG_SOURCE_DATE:=2019-06-17
+PKG_SOURCE_VERSION:=c057e177ace7704a3d4e2e1272baaf2e2d21cbed
+PKG_MIRROR_HASH:=6ef24be5da227b36fc63098767cf3de8dccbe5578487ffdbd69c7beeeb76bccd
 
 PKG_LICENSE:=GPL-2.0 BSD-3-Clause
 PKG_LICENSE_FILES:=