sync to current internal FFMpeg code
fixed, video playback glitches for avcC content
1) update internal ABI headers
2) removed aml legacey vars and structs
3) add debug filedump of data sent to amcodec.so
4) remove internal avCC convert, CBitStreamConverter handles it.
   this was cause of glitch, a rare double convert attempt that
   resulted a malformed NAL which faulted the hw decoder.
Merge pull request #3390 from davilla/amlcodec-fixes

Amlcodec fixes