SystemUI: Chamber string edit

Let the user know that the setting simply may not
	exist in the settings database yet on failure
	to parse the key.

PS2: Use only for settings database mismatch (not
	values toggled)
PS2: Dependency

Change-Id: Idec8ea425ea46ff0ebfda37451c521b08d2d4979
SystemUI: Chamber - Add Global Databases

Change-Id: I25eab5951f8d127ee80be3848766653b9e8d5523