libfdk-aacdec: Reduce the default decoder delay by one frame

The default error concealment method if none is set via
aacDecoder_SetParam(AAC_CONCEAL_METHOD) is set in
CConcealment_InitCommonData within the fdk-aac library
and is set to Energy Interpolation. This method requires one frame
delay to the output. To reduce the default decoder output delay and
avoid missing the last frame in file based decoding, use Noise
Substitution as the default concealment method.

Signed-off-by: Omer Osman <omer.osman@iis.fraunhofer.de>
Signed-off-by: Martin Storsjö <martin@martin.st>
x86: huffyuvdsp: Move inline assembly to init file

This avoids a link failure with MMX disabled as now code and
initialization are compiled under the same condition.
x86: Unconditionally compile blockdsp and svq1enc init files

This avoids a link failure with MMX disabled as the init functions
are referenced unconditionally.
x86: build: Only compile FDCT code if MMX is enabled

All other files containing purely inline assembly are treated the same way.