dt-bindings: pwm: apple,s5l-fpwm: Add t8122 compatible

The PWM controller on the Apple silicon t8122 (M3) SoC is compatible
with the existing driver. Add "apple,t8122-fpwm" as SoC specific
compatible under "apple,s5l-fpwm" used by the driver.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://patch.msgid.link/20260507-apple-m3-initial-devicetrees-v3-3-ca07c81b5dc7@jannau.net
Signed-off-by: Sven Peter <sven@kernel.org>

Author: jannau

Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml

@@ -18,6 +18,7 @@ properties:
       - enum:
           - apple,t8103-fpwm
           - apple,t8112-fpwm
+          - apple,t8122-fpwm
           - apple,t6000-fpwm
           - apple,t6020-fpwm
       - const: apple,s5l-fpwm