arm64: dts: db820c: fix gpio pinctrl name correctly

Fix typo in node name to reflect the correct pin name.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi

@@ -5,7 +5,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&ls_exp_gpio_f>;
 
-	ls_exp_gpio_f: pm8916_mpp4 {
+	ls_exp_gpio_f: pm8994_gpio5 {
 		pinconf {
 			pins = "gpio5";
 			output-low;