Revert "change wording about the post-boot initialization step hide the audible notification threshold setting include a notification tick for post-boot initialization step set ringing mode to silent on the answerer side when VQT is on"

This reverts commit 84b3b14268b2d58b995e82db9ec5edc0afae2e77.
Revert "add activation pending when VQT is turned on in Caller mode right after a fresh power off and on cycle"

This reverts commit 7b788f714da5a7b984a6335d033c5373ddce1b01.
Revert "require a one-time activation in Caller mode if the device is just booted"

This reverts commit 15c1958eeb4a8b749bcf58da2f95820ae3a4bf1b.
the caller starts recording when answerer picks up the call
record downlink voice in the native way in the case Android version >
4.0.4
obtain root privilege for native operations
remove reference to the native mixer controller library project because
root privilege can only be granted to an external native process rather
than the VM process of the App itself

use SSRC resample library to resample recordings done natively on I9305
from 44100Hz to requested sample rate due to the fact that the audio
codec will fix both the playback and record frequency at 44100Hz during
a call

remove the unnecessary leading delay in the playback service because it
becomes feasible to start recording right after the answerer picks up
the call
adapter to the new android-pcm-resample library project