Settings: add equalizer tile toggle

Change-Id: I51b34e34a7e6305bc5ced0672eb2aa7e8db45057
Signed-off-by: Roman Birg <roman@cyngn.com>
Settings: Remove "Make pattern visible" regardless.

  - Previous logic depended on all pattern lock elements to be
    null prior to removing the preferences. Remove them one by
    one if they exist now.

  - PS #3: Add braces.

Change-Id: If34bc305eddda2985b37bd55349e4bb5d9b63154
MSIM: Status & Subscriptions Status themes & navigation

Fixes navigation between screens via ActionBar (default behavior on
Settings activities) and switches old Holo theme to Kitkat default
for Status screen on MultiSim devices.

Change-Id: Ia643d645a29b067f4f149a4bec8d4e444a0750fc
Bluetooth: Acquire wakelock to turn on lcd during Connection

This patch acquires wakelock to turn on LCD display of DUT if screen
is off during connection access request for PBAP/MAP. Without this
patch it was observed that if screen was off, lcd remained off for
incoming connection access request from remote device and user only
was hearing notification sound without lcd being lit up.

Change-Id: I87c296fce4cd8e0c133f74169d991eee263fed08
CRs-Fixed: 650261
Bluetooth: Fix for device gets stuck in pairing

Fix for device gets stuck in pairing when trying to pair to two
devices one after the other or simultaneous. Now second pairing
is blocked when first pairing is ongoing.

Change-Id: Ib7e6788243a38b3a0dd864bee2b0797305468e27
CRs-fixed: 610056