First four pins (0 to 3) are now built-in FTDI GPIO/I2C pins
If i2c GPIO expander is detected, next 8 pins (4 to 11) are its GPIO
If i2c switch is detected an extra 4 i2c busses are added
Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>