am 3c78a1b5: Return a runtime error instead of asserting if the AACDecoder is passed an unsupported config.

Merge commit '3c78a1b58957e31d2991fb6a609abecbb1987b3b' into froyo-plus-aosp

* commit '3c78a1b58957e31d2991fb6a609abecbb1987b3b':
  Return a runtime error instead of asserting if the AACDecoder is passed an unsupported config.