alsa: fix resampler logic

This re-adds the original define for this while also permitting
the ability to bypass it.

Change-Id: Ie042732814d5848f7aba95918f2f48e4e5acda5f
Signed-off-by: Jonathan Steadman <xxwhitehawk@gmail.com>
Merge "alsa: fix resampler logic" into jb-mr1