package/wireguard: bump version to 0.0.20190913

For details of the changes, see the announcement:
https://lists.zx2c4.com/pipermail/wireguard/2019-September/004539.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/wireguard/wireguard.hash

@@ -1,4 +1,4 @@
-# https://lists.zx2c4.com/pipermail/wireguard/2019-September/004483.html
-sha256 78767ceeb5286beaa851145f072d920a340a9f1b771a2943b8efd638cee1a8f6  WireGuard-0.0.20190905.tar.xz
+# https://lists.zx2c4.com/pipermail/wireguard/2019-September/004539.html
+sha256 997327185d2d1b597dc118f737c0c165e2a2c21453387ea02659f1159d148518  WireGuard-0.0.20190913.tar.xz
 # Locally calculated
 sha256 8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING

package/wireguard/wireguard.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-WIREGUARD_VERSION = 0.0.20190905
+WIREGUARD_VERSION = 0.0.20190913
 WIREGUARD_SITE = https://git.zx2c4.com/WireGuard/snapshot
 WIREGUARD_SOURCE = WireGuard-$(WIREGUARD_VERSION).tar.xz
 WIREGUARD_LICENSE = GPL-2.0