ARM: tegra: Fix typoed ams,ext-control properties

The property for enabling external rail control on the AS3722 is
ams,ext-control, not ams,external-control. Since the external rail
control property was previously being ignored, LP1 suspend on these
boards wasn't actually turning the CPU rail off at all.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-jetson-tk1.dts

@@ -1461,7 +1461,7 @@ sd0 {
 					regulator-max-microamp = <3500000>;
 					regulator-always-on;
 					regulator-boot-on;
-					ams,external-control = <2>;
+					ams,ext-control = <2>;
 				};
 
 				sd1 {
@@ -1472,7 +1472,7 @@ sd1 {
 					regulator-max-microamp = <2500000>;
 					regulator-always-on;
 					regulator-boot-on;
-					ams,external-control = <1>;
+					ams,ext-control = <1>;
 				};
 
 				vdd_1v35_lp0: sd2 {
@@ -1521,7 +1521,7 @@ ldo0 {
 					regulator-max-microvolt = <1050000>;
 					regulator-boot-on;
 					regulator-always-on;
-					ams,external-control = <1>;
+					ams,ext-control = <1>;
 				};
 
 				ldo1 {

arch/arm/boot/dts/tegra124-venice2.dts

@@ -682,7 +682,7 @@ sd0 {
 					regulator-max-microamp = <3500000>;
 					regulator-always-on;
 					regulator-boot-on;
-					ams,external-control = <2>;
+					ams,ext-control = <2>;
 				};
 
 				sd1 {
@@ -693,7 +693,7 @@ sd1 {
 					regulator-max-microamp = <2500000>;
 					regulator-always-on;
 					regulator-boot-on;
-					ams,external-control = <1>;
+					ams,ext-control = <1>;
 				};
 
 				vdd_1v35_lp0: sd2 {
@@ -742,7 +742,7 @@ ldo0 {
 					regulator-max-microvolt = <1050000>;
 					regulator-boot-on;
 					regulator-always-on;
-					ams,external-control = <1>;
+					ams,ext-control = <1>;
 				};
 
 				ldo1 {