Update iproc clock dt-binding documentation with
Stingray pll and clock details.
Signed-off-by: NSandeep Tripathy <sandeep.tripathy@broadcom.com>
Reviewed-by: NRay Jui <ray.jui@broadcom.com>
Reviewed-by: NScott Branden <scott.branden@broadcom.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>