ARM: dts: imx6qdl-gw52xx: fix duplicate regulator naming

2 regulator descriptions carry identical naming.

This leads to following boot warning:
[ 0.173138] debugfs: Directory 'vdd1p8' with parent 'regulator' already present!

Fix this by renaming the one used for audio.

Fixes: 5051bff33102 ("ARM: dts: imx: ventana: add LTC3676 PMIC support")
Signed-off-by: Tim Harvey <[e-mail]>
Signed-off-by: Koen Vandeputte <[e-mail]>
Cc: [e-mail] # v4.11
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6qdl-gw52xx.dtsi

···
 
 			/* VDD_AUD_1P8: Audio codec */
 			reg_aud_1p8v: ldo3 {
-				regulator-name = "vdd1p8";
+				regulator-name = "vdd1p8a";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;