Fix the comment for the location box @xyz

Change-Id: I5347e346eef40a8ba90e7a3fa786b4654d18606b
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index f6a8b17..d0f6730 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -2862,8 +2862,8 @@
      * For historical reasons, any user data start
      * with "\0xA9", must be followed by its assoicated
      * language code.
-     * 0x0012: locale en
-     * 0x15c7: language 5575
+     * 0x0012: text string length
+     * 0x15c7: lang (locale) code: en
      */
     writeInt32(0x001215c7);
     writeLatitude(mLatitudex10000);