revert submodule reference changes

diff --git a/3rdparty b/3rdparty
index 21b466b72cdd4c823c011669593ecef1defb1f3c..dc87ea630287f27502eba825fbb19fcc33c34c86 160000 (submodule)
--- a/3rdparty
+++ b/3rdparty
@@ -1 +1 @@
-Subproject commit 21b466b72cdd4c823c011669593ecef1defb1f3c
+Subproject commit dc87ea630287f27502eba825fbb19fcc33c34c86