Fix checkpatch warnings and error as below:
  ERROR: "foo * bar" should be "foo *bar"
  WARNING: please, no space before tabs
  WARNING: quoted string split across lines
  WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>