ARM64: dts: meson-axg: fix pwm_AO_cd compatible

The compatible in pwm_AO_cd is wrong and does not match anything.
Correct this with the correct compatible string

Fixes: 4a81e5dd ("ARM64: dts: meson-axg: add PWM DT info for Meson-Axg SoC")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-axg.dtsi

@@ -759,7 +759,7 @@ pwm_AO_ab: pwm@7000 {
 			};
 
 			pwm_AO_cd: pwm@2000 {
-				compatible = "amlogic,axg-ao-pwm";
+				compatible = "amlogic,meson-axg-ao-pwm";
 				reg = <0x0 0x02000  0x0 0x20>;
 				#pwm-cells = <3>;
 				status = "disabled";