Fix standalone compilation of the iec61883 input device.
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Fix standalone compilation of the iec61883 input device.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/aacdec: reduce noisiness of missing channel elements

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