Settings: add equalizer tile toggle

Change-Id: I51b34e34a7e6305bc5ced0672eb2aa7e8db45057
Signed-off-by: Roman Birg <roman@cyngn.com>

Conflicts:
	res/xml/quick_settings_panel.xml
Correct string for left-handed mode

Change-Id: Iee951db7642a487b9ca94f1264b9cd2e2a4390be

Conflicts:
	res/values/cm_strings.xml
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

Conflicts:
	src/com/android/settings/SecuritySettings.java
Settings: Disable Battery status preference on ModLock.

Change-Id: I9c1b978cd3c50b6db73b333b9e392ee1918a9499