update ms2

diff --git a/mediastreamer2 b/mediastreamer2
index bd07524cee5f8af9b95b0e8b6bfc8d5b541d8600..674c20e4f186a8c2a3f91294aaa7b4bf419b7c3d 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit bd07524cee5f8af9b95b0e8b6bfc8d5b541d8600
+Subproject commit 674c20e4f186a8c2a3f91294aaa7b4bf419b7c3d