audio: Add APIs for supported compress formats

-Add APIs for supported compress capture & compress voip formats.
-Add default bytes per sample as 1.

Change-Id: If63a50f02389475855f2f0729b03b6049d44fb29
core: add QCOM_HARDWARE ifdefs

Change-Id: I5fb1420d5ce99a86cd8bc42556be5616ff89229b
Merge "audio: Add APIs for supported compress formats" into android-4.4
Merge "core: add QCOM_HARDWARE ifdefs" into android-4.4
Merge remote-tracking branch 'omni/android-4.4' into android-4.4