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
msm8974-common: Increase volume for voice paths

- Increase speakerphone mic & speaker volume
- Increase handset earpiece volume

Bugs: BACON-27, BACON-38

Change-Id: I8554c395ac52b77733d02069615e6fb5335686e0