fixes for windows

[linphone] / mediastreamer2

diff --git a/mediastreamer2 b/mediastreamer2
index 621a1fbb0fd06736bbd119247a3fff60ebdaf095..672a3365cf31dd23c502169301a6994e7ae4b67c 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 621a1fbb0fd06736bbd119247a3fff60ebdaf095
+Subproject commit 672a3365cf31dd23c502169301a6994e7ae4b67c