Settings: Lock before unlock the new way (2/2)

for more information see fb commit please.
target selection if lock before unlock is activated
will be enabled and shows the repective settings dependend
on if it is a phone or tablet

Change-Id: I6bb41539383c2b02b62354b00c773505f396028e

Conflicts:
	res/values/mighty_strings.xml
	res/xml/security_settings_password.xml