hwmon: (nct6775) Drop unneeded casting and conjunction

The 64-bit result will be cut to 32-bit automatically (by compiler)
due to the type of the destination value. No need to have an explicit
casting and especially additional conjunction which does the same.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230217191600.24837-1-andriy.shevchenko@linux.intel.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>