iio: magnetometer: Add mmc5633 sensor

iio: magnetometer: Add mmc5633 sensor

Add mmc5633 sensor basic support.
- Support read 20 bits X/Y/Z magnetic.
- Support I3C HDR mode to send start measurememt command.
- Support I3C HDR mode to read all sensors data by one command.

Co-developed-by: Carlos Song <carlos.song@nxp.com>
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Co-developed-by: Adrian Fluturel <fluturel.adrian@gmail.com>
Signed-off-by: Adrian Fluturel <fluturel.adrian@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>