dt-bindings: gpu: v3d: Add SMS to the registers' list

V3D 7.1 exposes a new register block, called V3D_SMS. As BCM2712 has a
V3D 7.1 core, add a new register item to the list. Similar to the GCA
and bridge register, SMS is optional and should only be added for V3D
7.1 variants.

Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Nicolas Saenz Julienne <nsaenz@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Maíra Canal <mcanal@igalia.com>

Author: mairacanal

Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml

@@ -27,14 +27,16 @@ properties:
       - description: core0 register (required)
       - description: GCA cache controller register (if GCA controller present)
       - description: bridge register (if no external reset controller)
+      - description: SMS register (if SMS controller present)
     minItems: 2
 
   reg-names:
     items:
       - const: hub
       - const: core0
-      - enum: [ bridge, gca ]
-      - enum: [ bridge, gca ]
+      - enum: [ bridge, gca, sms ]
+      - enum: [ bridge, gca, sms ]
+      - enum: [ bridge, gca, sms ]
     minItems: 2
 
   interrupts: