update ms2 and oRTP to enable makefile dependency generation on MACOSX

[linphone] / mediastreamer2

diff --git a/mediastreamer2 b/mediastreamer2
index 19c8fccc49ceabeb08afefdbe08f7fe4e63682c5..1900aea420f2b9bb66690eeecd75b28750a6d83e 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 19c8fccc49ceabeb08afefdbe08f7fe4e63682c5
+Subproject commit 1900aea420f2b9bb66690eeecd75b28750a6d83e