Updated to latest 'core'.

Signed-off-by: Roland Haeder <roland@mxchange.org>

diff --git a/core b/core
index 3288f03df9e42997670846535cc0390f080599e5..08164c824a16cc37eb29ef890ded66f0fbba4354 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 3288f03df9e42997670846535cc0390f080599e5
+Subproject commit 08164c824a16cc37eb29ef890ded66f0fbba4354