linux: patches for iio framework and lucky shield drivers

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>
bathos-mcuio.hex: new command baudrate in shell

type 'baudrate 1' for baudrate 125000
type 'baudrate 2' for baudrate 250000

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>
kernel config: compile iio, hwmon and lucky shield drivers

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>