dt-bindings: pwm: amlogic: Document A4 A5 and T7 PWM

Document amlogic,a4-pwm amlogic,a5-pwm and amlogic,t7-pwm
compatible, which falls back to the meson-s4-pwm group.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260312-pwm_binding-v1-1-515cb65add98@amlogic.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>

Author: Xianwei Zhao

Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml

@@ -39,7 +39,10 @@ properties:
           - amlogic,meson-s4-pwm
       - items:
           - enum:
+              - amlogic,a4-pwm
+              - amlogic,a5-pwm
               - amlogic,c3-pwm
+              - amlogic,t7-pwm
               - amlogic,meson-a1-pwm
           - const: amlogic,meson-s4-pwm
       - items: