MediaRecorder: add pause interface

--add pause in java level
--add pause in jni level

Change-Id: I7f2d5d5ebb97716458b55a5780fd6cc3d09e9f11
Revert "MediaRecorder: add pause interface"

This reverts commit 58f4039c2e84e1b8fb2af2351a320957053f9247.
Set new defaults

Change-Id: I1434cc1746dc3c6f6ccae1f6b598d369b19af21e