mako: Add default value for display color control

depend on following commits

opt/hardware: http://review.cyanogenmod.org/#/c/59752/
Settings: http://review.cyanogenmod.org/59753

Change-Id: I5573bb6c45f4bc67a040b21203a103e0a883903d
Merge remote-tracking branch 'origin/cm-11.0' into kitkat