linux-imx

workqueue: Fix spelling in source code comments

Change "execuing" into "executing" and "guarnateed" into "guaranteed".

Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Tejun Heo <tj@kernel.org>