hwmon: (pmbus/mpq7932) Add a support for mpq2286 Power Management IC

The MPQ2286 is a programmable, high frequency synchronous buck regulator
designed to power a variety of Automotive system peripherals. Single buck
converters with hardware monitoring capability is configurable over PMBus
interface.

Signed-off-by: Saravanan Sekar <saravanan@linumiz.com>
Link: https://lore.kernel.org/r/20231011164754.449399-5-saravanan@linumiz.com


[groeck: Updated subject (mpq2286 -> mpq7932)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>