Revert "Fix registerListener and flush bugs."

This reverts commit 4bdc37d315a6dbdcf2425e70423ec43d7b74e102.
Revert "Sensor batching APIs for review."

This reverts commit d405e0fc8274e8dc9ce8d6e084f6ad679fa6e6fa.

Conflicts:
	api/current.txt
Revert "Fix for build breakage. Remove documentation link to hidden registerListener API."

This reverts commit 1f519d46828f11413c70653ce5c31eba25b3f633.
Revert "Sensor batching. Implementation for registerListener(with batch support) and flush APIs."

This reverts commit b4c76b18a369d940f448bcc55d7245b6b30084dd.
Revert "Fix for build breakage. Correcting the documentatation link in Sensor.java. I added a wrong link {@link #SENSOR_TYPE_ROTATION_VECTOR} instead of {@link #TYPE_ROTATION_VECTOR}."

This reverts commit f0f4a831128c57acb52ce91f6d96a9f2b710c80f.
Revert "Adding new constants for STEP_DETECTOR, STEP_COUNTER and GEOMAGNETIC_ROTATION_VECTOR."

This reverts commit 4b628cb53dd84dae82db941d49ef10d58f22bf07.
Revert "Revert "Revert "be more robust with handling unknown sensors"""

This reverts commit 3c9c0918635143f373817fff1ce5131b995282cf.
audio: add support for MSM audio formats

- Add support for EVRC, QCELP, and WMA formats
- Add definition for 5.1 channel recording
- Reference change If3676b88fa287b484ef8616c0a6b67177b61a720

Change-Id: I6b6e5ca98921adeadd2a3d76580fe85fb28eeaf0
(cherry picked from commit 10c4f204bb5ac78b9cf3854b536663ccd3d50333)
(cherry picked from commit 3f99cc5f134b0f00a52218ae1c0273cc11ae7702)
(cherry picked from commit 1d35b52c7c9cf1cfd3a3de372391a7a57f593af9)
audio: Define Proxy device

- Added Proxy device changes

Change-Id: I47921d696171de40bcfc30ebf99d4cafa0d4d4a3
(cherry picked from commit a8b7ed78ec088bc6924854661bacde51d7194ab3)
(cherry picked from commit cff61cfd964a1150919d9bfa7ec0ebfe35d5f247)
(cherry picked from commit bf8f7a2a574cb2e6aafae3efa6e4ee163ef65cf7)
audio: audio enhancements for playback and recording.

- Add playback and record support for EVRC, QCELP,
  WMA, AMRWBPLUS, WAV, ACE, and EC3.
- Add support for 5.1 channel recording.
- Add support for in call music.
- Add constants for call_state and vsid.
- Add definition for FM and proxy audio devices.
- Remove unnecessary format checks in frameworks.

Change-Id: If3676b88fa287b484ef8616c0a6b67177b61a720
(cherry picked from commit 6ca6cc15af88992ea485a458e67a8546b156672e)
(cherry picked from commit f65028d1752969bf43c853c1bb12ecd12055d5e8)
(cherry picked from commit b1952442db41188b74f331bd2397a579424821ab)
  audio: Support for MSM audio formats

  -Add audio format support for Voip.

Change-Id: Ie045ba926b3e1266afd3fb6fba09af3a55daaeef
(cherry picked from commit d1810964ecd2d50064a1fed51049ddc354b9a788)
(cherry picked from commit cd9c6dc56bedcabca77c2a01c6fb15f4d2e8edd5)
(cherry picked from commit 01c09aeae38716860ef1a806985cc946dca93f60)