hwmon: (pmbus/lm25066) Use PMBUS_REGULATOR_ONE to declare regulator

If a chip only provides a single regulator, it should be named 'vout'
and not 'vout0'. Declare regulator using PMBUS_REGULATOR_ONE() to make
that happen.

Cc: Conor Dooley <conor@kernel.org>
Cc: Naresh Solanki <naresh.solanki@9elements.com>
Cc: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240223-player-buckskin-01405c5889c4@spudSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/pmbus/lm25066.c

@@ -437,7 +437,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
 
 #if IS_ENABLED(CONFIG_SENSORS_LM25066_REGULATOR)
 static const struct regulator_desc lm25066_reg_desc[] = {
-	PMBUS_REGULATOR("vout", 0),
+	PMBUS_REGULATOR_ONE("vout"),
 };
 #endif