settings: Add blacklist provider permission

Change-Id: I1778451f0e6a42b9734e6482ebdf826874c1100d
JIRA: CYAN-3727
Issue: https://jira.cyanogenmod.org/browse/CYAN-3727
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "settings: Add blacklist provider permission" into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0