Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  buildsys: only include log2_tab per library for shared builds
  Add h264chroma dependency for cavs decoder to configure.
  Add h264qpel dependency for snow codec to configure.
  Add h264chroma dependency for vp5 and vp6 decoder to configure.

Merged-by: Michael Niedermayer <michaelni@gmx.at>