hwmon: (intel-m10-bmc-hwmon) Fix multiplier for N6000 board power sensor

hwmon: (intel-m10-bmc-hwmon) Fix multiplier for N6000 board power sensor

The Intel N6000 BMC outputs the board power value in milliwatt, whereas
the hwmon sysfs interface must provide power values in microwatt.

Fixes: e1983220ae14 ("hwmon: intel-m10-bmc-hwmon: Add N6000 sensors")
Signed-off-by: Peter Colberg <peter.colberg@intel.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Link: https://lore.kernel.org/r/20240521181246.683833-1-peter.colberg@intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>