Staging: iio: accel: Replace msleep with usleep for given range

This patch fixes checkpatch.pl warning:
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt

As per Documentation/timers/timers-howto.txt usleep_range should be used
for sleeping for 10us-20ms
Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/iio/accel/adis16220_core.c

@@ -70,7 +70,7 @@ static int adis16220_capture(struct iio_dev *indio_dev)
 	if (ret)
 		dev_err(&indio_dev->dev, "problem beginning capture");
 
-	msleep(10); /* delay for capture to finish */
+	usleep_range(10000, 11000); /* delay for capture to finish */
 
 	return ret;
 }