arm: dts: radxa cm3 rpi cm4 io: fix gpiochip3

Signed-off-by: Nascs Fang <nascs@radxa.com>

Author: nascs

arch/arm64/boot/dts/rockchip/rk3566-radxa-cm3-rpi-cm4-io.dts

@@ -271,7 +271,7 @@
 		/* GPIO3_D0-D3 */
 		"PIN_35", "PIN_40", "PIN_38", "PIN_18",
 		/* GPIO3_D4-D7 */
-		"PIN_19", "PIN_7", "", "";
+		"PIN_16", "PIN_7", "", "";
 };
 
 &gpio4 {