Fixed compilation of VideoDecoderFFmpegHW
Added cedarx decoder.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Conflicts:
	QtAV.pro
Added asm optimization in cedar driver for NEON.
Fixed deep copy of encoded data.
Removed yuv buffers from VideoDecoderCedarvPrivate.
Merge pull request #197 from wang-bin/cedarv

merge cedarv support code from mireq