rockchip: Fix regualtor typo in veyron

This typo doesn't actually cause any problems, but is wrong. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/rk3288-veyron-jerry.dts

@@ -21,7 +21,7 @@
                 stdout-path = &uart2;
         };
 
-	panel_regulator: panel-regualtor {
+	panel_regulator: panel-regulator {
 		compatible = "regulator-fixed";
 		enable-active-high;
 		gpio = <&gpio7 14 GPIO_ACTIVE_HIGH>;