stagefright: Use multiaac decoder for multiaac :)

 * Fix the channel count and use the non-OMX multiaac codec.
 * This fixes a DSP crash with certain files.

Change-Id: I7fe14b7b647db8017724676f87c083301c2295a8
audio: Audio resampler support for 192Khz playback

-Current AudioResampler limits input sampling rate to be
maximum of twice of output sampling rate to downsample.
The output sampling rate being 48khz, maximum input sampling
rate that be supported is 96khz.
Support is added to use qti resampler for playback upto 192khz.

Change-Id: Ia8f24a0874ebf6e16ef7bd1f2759a14f47149875