update ms2

diff --git a/mediastreamer2 b/mediastreamer2
index 06e505707c31d11e056f2dad4de3ac617985333b..28c3383b5e98196ab394f6616f11c195e6759d28 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 06e505707c31d11e056f2dad4de3ac617985333b
+Subproject commit 28c3383b5e98196ab394f6616f11c195e6759d28