dt/bindings: fsl/guts: Added global-utilities compatibles

v3 - Addressed Scott's feedback:
	Added "fsl,<chip>-guts"

v2 - Addressed Scott's feedback

Signed-off-by: Igal Liberman <Igal.Liberman@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>