NuPlayer: Add RTSP Server Timeout Setting to Meta Data

Needs http://gerrit.dirtyunicorns.com/4010

- Operator requires MoviePlayer to prompt dialog when the activity has been
  paused for longer than server timeout. This patch adds server timeout
  to meta data, so app can get the timeout value.

CRs-Fixed: 638087
Change-Id: I08f98e965497047c420d9d6ecc0b2898abe56369
Merge "NuPlayer: Add RTSP Server Timeout Setting to Meta Data" into du44