AM64x SoCs have two R5F clusters in the main power domain.
Extend support for R5F remote proc driver on AM64x with compatible
strings.
Signed-off-by: Hari Nagalla <hnagalla@ti.com> Signed-off-by: Judith Mendez <jm@ti.com> Reviewed-by: Daniel Schultz <d.schultz@phytec.de> Reviewed-by: Andrew Davis <afd@ti.com>