dt-bindings: omap: Add TI Pandaboard A4 variant

Document the ti,omap4-panda-a4 compatible string in the appropriate
place within the omap family binding file.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250123174901.1182176-1-trini@konsulko.com
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

Author: trini

Documentation/devicetree/bindings/arm/ti/omap.yaml

@@ -141,6 +141,13 @@ properties:
           - const: ti,omap4430
           - const: ti,omap4
 
+      - description: OMAP4 PandaBoard Revision A4 and later
+        items:
+          - const: ti,omap4-panda-a4
+          - const: ti,omap4-panda
+          - const: ti,omap4430
+          - const: ti,omap4
+
       - description: OMAP4 DuoVero with Parlor expansion board/daughter board
         items:
           - const: gumstix,omap4-duovero-parlor