ARM: dts: rockchip: Remove vdd_log from rk808, DCDC_REG1 on rk3288-vyasa

vdd_log, never used on DCDC_REG1 of rk808 from latest schematic so
remove the same and update the regulator-name as 'vdd_arm' to sync
with existing rk3288 board dts files.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288-vyasa.dts

@@ -121,8 +121,8 @@ rk808: pmic@1b {
 		vcc12-supply = <&vcc_io>;
 
 		regulators {
-			vdd_cpu: vdd_log: DCDC_REG1 {
-				regulator-name = "vdd_log";
+			vdd_cpu: DCDC_REG1 {
+				regulator-name = "vdd_arm";
 				regulator-min-microvolt = <750000>;
 				regulator-max-microvolt = <1350000>;
 				regulator-always-on;