dt-bindings: pwm: at91: Add sama7d65 compatible string

Add compatible string for sama7d65. Like sama7g5, it currently binds to
"atmel,sama5d2-pwm" compatibility string for this driver, so add an
"enum" to reflect that.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240710163651.343751-1-nicolas.ferre@microchip.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>

Author: noglitch

Documentation/devicetree/bindings/pwm/atmel,at91sam-pwm.yaml

@@ -23,7 +23,9 @@ properties:
               - atmel,sama5d2-pwm
               - microchip,sam9x60-pwm
       - items:
-          - const: microchip,sama7g5-pwm
+          - enum:
+              - microchip,sama7d65-pwm
+              - microchip,sama7g5-pwm
           - const: atmel,sama5d2-pwm
       - items:
           - const: microchip,sam9x7-pwm