Bump to LibZipSharp/ea6809ba to fix a file locking issue (#232)

Fixes: https://bugzilla.xamarin.com/show_bug.cgi?id=44184
2016-09-23 16:57:35 +01:00 · 2016-09-23 16:57:35 +01:00 · 9187b4d015
--- a/external/LibZipSharp
+++ b/external/LibZipSharp
@ -1 +1 @@
-Subproject commit eeba812d287c74e6d28cf5461f6fd62cff2f6963
+Subproject commit ea6809bafdfd4ef6d67b92aa45228dd6518bce22