audio: msm8916: Squashed audio amp commits

commit e821aba3b7603328f5b54877ae49c968db9f041e
Author: Scott Mertz <scott@cyngn.com>
Date:   Fri Sep 11 12:13:08 2015 -0700

    hal: notify amplifier of parameter changes

    Change-Id: Iecc020c0347ae7c43d27183186e06dcefef7a0dd

commit 338f1b9c00aaa3830b44f030c255f974e781519a
Author: Dan Pasanen <dan.pasanen@gmail.com>
Date:   Mon Aug 10 19:55:39 2015 -0500

    hal: only open the amplifier once

    Change-Id: Ie9bbff74123e90b71e95809a84dcb3bbe9ba82fe

commit d79e906e7d34369a2444bc6827bfb0fb57dc2c55
Author: Dan Pasanen <dan.pasanen@gmail.com>
Date:   Mon Aug 10 19:47:43 2015 -0500

    hal: enable amplifier earlier

    Change-Id: Id876e8f836e3ce1ee5f8186ca9c0e6ef5f37182c

commit dfa41b007c557c30c87842d67c3089b624b45253
Author: Ethan Chen <intervigil@gmail.com>
Date:   Fri Jul 3 21:35:30 2015 -0700

    hal: Notify amplifier of device enable/disable

    Change-Id: Ice808c9b55a9e3bc8bafe5ca3ff555377d38dd8f

commit 44448ed866ca8d1fbcce558504151e8f1ea9e480
Author: Ethan Chen <intervigil@gmail.com>
Date:   Sun Jun 7 12:32:08 2015 -0700

    hal: Convert libaudioamp to audio_amplifier HAL

    Change-Id: I1d0f63a46989d1792d7a5e08d2bdb6344ebafa31

commit cb832553f11b79acc16772bd3f930a9d38f748c5
Author: Scott Mertz <scott@cyngn.com>
Date:   Sat Jun 6 13:46:03 2015 -0700

    audio: add amplifier stream start/standby operations

    Change-Id: I5de7ad7a0467e7cf822c9c0870a755c03d05e884

commit 1437a75bee9d016dc58e10220cd69ae4c1454f24
Author: Daniel Hillenbrand <codeworkx@cyanogenmod.org>
Date:   Thu May 23 10:10:00 2013 +0530

    hal: Support the audio amplifier hook

    * Original legacy HAL commit:
      Ib236598a5888b2af19bcfb81e285f644a0e84c0d
    * Example: http://review.cyanogenmod.org/38221

    Change-Id: Ic944a9f7059c78b79322dae9c787cdd8bb029cff

Change-Id: I4ea9556a327b31ad2a39f182b8ac7114693f2ac6