regulator: arizona-ldo1: Add additional top voltage

The number of voltage slots supported by the LDO is 7, not 6.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/arizona-ldo1.c

@@ -55,7 +55,7 @@ static const struct regulator_desc arizona_ldo1 = {
 	.bypass_mask = ARIZONA_LDO1_BYPASS,
 	.min_uV = 900000,
 	.uV_step = 50000,
-	.n_voltages = 6,
+	.n_voltages = 7,
 	.enable_time = 500,
 
 	.owner = THIS_MODULE,