[1/2] packages/apps/Settings: enable quickunlock

Automatically unlock the lockscreen when correct PIN/Password is keyed

Base: https://gerrit.omnirom.org/#/c/2606

Change-Id: I4d37a1651689f88a878b58530c77fa562eca42db

Conflicts:
	res/values/custom_strings.xml
	res/xml/security_settings_chooser.xml
	res/xml/security_settings_password.xml
	res/xml/security_settings_pin.xml