Squashed commit of updates from CodeAurora

libstagefright: Add support for VC1 clips

- configure decoder in frame-by-frame or arbitrary mode
  based on the codec type.

Change-Id: I6404e5b7ee217045e6456f51f914dbd8a651d98a
CRs-Fixed: 432847

stagefright: Miscellaneous fixes for LPA and Tunnel playback

1. Fix for AV sync issue with Tunnel playback
APIs for returning correct timestamps were implemented
2. Crash while exiting TunnelPlayer
Check whether sink is open before flushing or closing it.
Check for mIsAudioRouted is good to know if we are closing it
3. Seekbar freezes after seek and pause
Check pause status before writing

Change-Id: Id8ab7b258e9c05b20e121bdf3c4dc30d519f6c15

frameworks/av: Add support for surround sound recording

- Add 5.1 channel as supported input channel

Change-Id: I50fcd87245c5c855ede8f09ea1a7c5be2e684640

stagefright: Add tunnel decode for amr-wb/wb+

When tunnel.decode is true, playback of AMR-WB
and AMR-WB+ uses tunnel decode.

Change-Id: Ic06cb3faaac18f605402c98a27cb4dfa4b7faee2

stagefright: Skip LPA if #channels > 2

Skip LPA for Multi channel playback

Change-Id: I5b97471ef55aea260d1c02db672eb4bd64c3edef