stagefright/rtsp: Remove dependence on OMXSource

Use MediaCodecSource and SimpleDecodingSource instead.

Bug: 17108024
Change-Id: Idff221fc7131b1622af97bc3c5aa952afcd3d22b
(cherry picked from commit a2b4bcf6562de3f8528fc139ec202bd73fa340c7)
3 files changed