add jni and java accessors for realtime late and loss rates

[linphone] / mediastreamer2

diff --git a/mediastreamer2 b/mediastreamer2
index abf2a7ec461ac411703233e3554e985d62fa0b9c..4f93003c1eade1442fdedd8dee10f18c98ec47c3 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit abf2a7ec461ac411703233e3554e985d62fa0b9c
+Subproject commit 4f93003c1eade1442fdedd8dee10f18c98ec47c3