Add UKSM 0.1.2

Signed-off-by: Dan Trifan <jimsth@gmail.com>
UKSM: Upgrade to 0.1.2.2

Signed-off-by: Dan Trifan <jimsth@gmail.com>
i2c: use usleep_range to wait instead of msleep

according to the docs msleep(1) means wait up 20ms. i2c bus probably
doesn't need to wait that long. Potential performance boost.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
power: decrease the amount of time the device waits after entering lower power state - Thanks Franco

Signed-off-by: Dan Trifan <jimsth@gmail.com>