ARM: dts: Set VAUX1 and VAUX4 to 3.0V and 1.8V respectively

The development kit schematic expects VAUX1 to be 3.0V.  Most users use the development kit as a reference.
The development kit schematic expects VAUX4 to be 1.8V.  VAUX4 powers VDDS_CSI2 on processor.  If the voltage is too high it could damage the processor.
If it's too low, it won't work.
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts

@@ -73,6 +73,16 @@
 	};
 };
 
+&vaux1 {
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+};
+
+&vaux4 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+};
+
 &mcbsp2 {
 	status = "okay";
 };