Incorrect temperature values were obtained

[lnkaymr]

Original:

float_t iis3dhhc_from_lsb_to_celsius(int16_t lsb)
{
  return (((float_t)lsb / 16.0f) + 25.0f);
}

Suggest new code:

float_t iis3dhhc_from_lsb_to_celsius(int16_t lsb)
{
  return (((float_t)(lsb>>4) / 16.0f) + 25.0f);
}