Import msm7630 audio HAL from jb_2.5.3 branch

Squashed import of the following CAF commits:

a0947f8 audio/msm7630: Initial commit for MR1 Audio bringup.
67550d7 audio: compile only if TARGET_USES_QCOM_MM_AUDIO set to true
51e24b7 msm7630 : Propagate the flag value to status
4642b91 Remove audio_poliy.conf from msm7630
b982f5a audio/8655: Enabling LPA playback by adding AudioSessionOutLPA class
fef3c65 audio/msm8655: Fix for AAC recording failure.
eeae23f msm7630 : Send proper channleMask for getInputProfile()
fe2acf4 Update copyright to The Linux Foundation
4931e2c audio/msm7630: Add usb audio hal profile.
04bcc5f audio/msm7630: Fix for volume change during voice call
58de776 7x30 : Port heap mask change to ion
c0a97d0 audio/msm7630: Fix the issue of voice call when HDMI connected
223c325 audio/msm7630: Fix to enable TTY device
387befb audio/msm7630: Add latency support for LPA
701b6c6 audio/msm7630: Fix for routing camcorded encoded clip audio to wired headset
a20c757 audio/msm7630: Fix for back to back VOIP calls failure
8f6be8a audio/msm7630 : Stability issue with LPA play back.

Change-Id: I2e38cad3e481cfe3d8830f127dda6de8e98325c5
Signed-off-by: Michael Bestas <mikeioannina@gmail.com>