[PATCH 1/2] wireguard: switch to submodule ref 0.0.20180625

[Fabian Holler]

Since the commit "Version bump for clat fix" the app/tools/wireguard
submodule referenced an non-existing commit.

This caused that builds for the f-droid were failing
(https://f-droid.org/wiki/page/com.wireguard.android/lastbuild_426).
The newest version in f-droid is 0.0.20180612.

Change the submodule reference to wireguard 0.0.20180625
---
 app/tools/wireguard | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/tools/wireguard b/app/tools/wireguard
index e116751..dfd9827 160000
--- a/app/tools/wireguard
+++ b/app/tools/wireguard
@@ -1 +1 @@
-Subproject commit e1167518ff41ae9ee21a3e90c7959be2867c3636
+Subproject commit dfd9827d5b08c506522bb3762cd3b0dbac640bbc
-- 
2.17.1