Merge changes Ic259cf29,I477dc2aa,Iac2a9eb1,I340fab6b,I5ec599bd, ... into pi-dev

* changes:
  codec2: fix C2SoftMpeg4Dec initialization and release
  codec2: Handle inBuffer with non-zero offset
  codec2: Fix issues in Gapless playback C2SoftMP3
  codec2: add C2SoftHevc
  codec2: add C2SoftVorbis
  codec2: add C2SoftRaw
  codec2: add C2SoftAmrWbEnc
  codec2: add C2SoftAMR
  codec2: add C2SoftGSM