Fixed testAudioRestriction for managed profile owner.

Disabled testAudioRestriction for managed profile, because
DISALLOW_UNMUTE_MICROPHONE can only be set by device owners
and profile owners on the primary user. Added/enabled
tests for DISALLOW_ADJUST_VOLUME. Also added permission
to run AudioManager.setMicrophoneMute().

BUG:27743508
Change-Id: Ieb5aeb07fc352bd1de7b67c61a46b0198ba38237
3 files changed