libaudioeffect_jni GREF leak fix

- excessive jni reference in AudioEffects
- global references created during native setup are not deleted
- global references are dleted in setup failure and during native releases

Changeset 2:
    -fixed whitespace, and rebased on jb42

Modifications, 1 tab == 4 spaces

Change-Id: I3ff54cc3b0c5394e978421dad3a7a257551f776e
Signed-off-by: Alexander Martinz <eviscerationls@gmail.com>
Fix for Lock before unlock (read description)
- Using lock before unlock combined with patterm pin or password when try to unlock using any app or activity instead of normal lock (padlock shortcut) the unlock process only work if we enter the method two times and not in first attempt.

Change-Id: I60c0ec22d7b0278fd0e3b69c42fad6e2afdd5b92