msm8974: Enable resampler use in PCM offload path

 * In the cases where we have concurrent conflicting
   sample rates, we need to resample one stream since
   the backend codec only knows about a single stream.

Change-Id: I485d9782046741cbbbabfcf8e86f26a7b3a38091
Make mixer_paths.xml device specific

 * Make mixer_paths.xml device specific because Bacon and find7 have
   different mic configurations.

 * This will allow speaker phone on find7.

Change-Id: Icdb2a5623256386b3cba1a9c939fc795e8fc1125