fix exosip dscp api detection

[linphone] / mediastreamer2

diff --git a/mediastreamer2 b/mediastreamer2
index 45c9c65168a9912bd2aa97344b396771ff1cdaf0..430cc1376d68b1a8d82799357abea9e3e1c536f8 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 45c9c65168a9912bd2aa97344b396771ff1cdaf0
+Subproject commit 430cc1376d68b1a8d82799357abea9e3e1c536f8