dt-bindings: ata: Convert fsl,pq-sata to YAML

dt-bindings: ata: Convert fsl,pq-sata to YAML

Convert the Freescale PowerQUICC SATA controller binding from text form
to YAML. The list of compatible strings reflects current usage.

To clarify the description, I changed it to mention "each SATA
controller" instead of each port.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
Link: https://lore.kernel.org/r/20250220-ppcyaml-ata-v3-1-5e727ab86247@posteo.net
Signed-off-by: Niklas Cassel <cassel@kernel.org>