msm8974: Move loc_api files here

 * The QMI interface is version specific. Keep it simple and put
   it with the rest of the GPS HAL.

Change-Id: I916f3a102e9ce172d68860c5d563de0dec3ccaee
msm8974-common: Increase volume for voice paths

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

Bugs: BACON-27, BACON-38

Change-Id: I8554c395ac52b77733d02069615e6fb5335686e0
msm8974: Build ANT+ support

Change-Id: I32303d265a7a08c9068f93c8dfc6d324d9c957f9