dt-bindings: gpu: img,powervr-rogue: Document GX6250 GPU in Renesas R-Car M3-W/M3-W+

Document Imagination Technologies PowerVR Rogue GX6250 BNVC 4.45.2.58
present in Renesas R-Car R8A77960 M3-W and R8A77961 M3-W+ SoC.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Matt Coster <matt.coster@imgtec.com>
Link: https://patch.msgid.link/20251022033847.471106-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Matt Coster <matt.coster@imgtec.com>

Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml

@@ -13,6 +13,12 @@ maintainers:
 properties:
   compatible:
     oneOf:
+      - items:
+          - enum:
+              - renesas,r8a7796-gpu
+              - renesas,r8a77961-gpu
+          - const: img,img-gx6250
+          - const: img,img-rogue
       - items:
           - enum:
               - ti,am62-gpu
@@ -94,11 +100,14 @@ allOf:
         clocks:
           maxItems: 1
 
+
   - if:
       properties:
         compatible:
           contains:
-            const: thead,th1520-gpu
+            enum:
+              - img,img-gx6250
+              - thead,th1520-gpu
     then:
       properties:
         clocks:
@@ -125,7 +134,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: img,img-bxs-4-64
+            enum:
+              - img,img-gx6250
+              - img,img-bxs-4-64
     then:
       properties:
         power-domains: