fix IOS camera localized name issue

diff --git a/mediastreamer2 b/mediastreamer2
index 9ede708999a083165190982d31b358963faf5b7a..c621a8ac69a33ae72f176689fa837bc5f0fb8eff 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 9ede708999a083165190982d31b358963faf5b7a
+Subproject commit c621a8ac69a33ae72f176689fa837bc5f0fb8eff