media: dt-bindings: cadence-csi2rx: Add TI compatible string

Add a SoC-specific compatible string for TI's integration of this IP in
J7 and AM62 line of SoCs.

Tested-by: Julien Massot <[e-mail]>
Reviewed-by: Maxime Ripard <[e-mail]>
Reviewed-by: Laurent Pinchart <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Jai Luthra <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

Documentation/devicetree/bindings/media/cdns,csi2rx.yaml

···
     items:
       - enum:
           - starfive,jh7110-csi2rx
+          - ti,j721e-csi2rx
       - const: cdns,csi2rx
 
   reg: