Update ms2 and oRTP submodules for dummy STUN packet sending.

[linphone] / oRTP

diff --git a/oRTP b/oRTP
index b1590514c98d33e5464d46317fdeaec52f778de7..0091eeead5d472797fb474f876a4cc835712c3e6 160000 (submodule)
--- a/oRTP
+++ b/oRTP
@@ -1 +1 @@
-Subproject commit b1590514c98d33e5464d46317fdeaec52f778de7
+Subproject commit 0091eeead5d472797fb474f876a4cc835712c3e6