Settings: Always enable the per-app pulse light settings

All the per-app light settings, including the pulse light settings,
were made dependent on config_multiColorNotificationLed.

The code to enable the notification color settings depending on the
value of config_multiColorNotificationLed is already in place, so
enable the advanced light settings unconditionally.

Change-Id: Ie396f5e6e190c6d3f08c83dd0b38b038f0653b85