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>

Conflicts:
	AndroidManifest.xml
oops on last commit