Duplicate stk1160 driver

The driver seems to work better, but I still have a crash on cleanup
when the device is yanked during recording.
smi2021: Cleanup some i2c commands
smi2021: Fixed some whitespace-issues and typos
smi2021: Fix a bug/warnign when yanking the device

This should fixup the driver cleanup when the device is removed
while the v4l2 device is in use.