am 4c5d28ce: RTP: move into frameworks.

Merge commit '4c5d28cee0537c83ff0e5bc0daaae78f68dfc7c8' into gingerbread-plus-aosp

* commit '4c5d28cee0537c83ff0e5bc0daaae78f68dfc7c8':
  RTP: move into frameworks.