fix: workqueue: Fix type of cpu in trace event (v5.19)

fix: workqueue: Fix type of cpu in trace event (v5.19)

See upstream commit :

  commit 873a400938b31a1e443c4d94b560b78300787540
  Author: Wonhyuk Yang <vvghjk1234@gmail.com>
  Date:   Wed May 4 11:32:03 2022 +0900

    workqueue: Fix type of cpu in trace event

    The trace event "workqueue_queue_work" use unsigned int type for
    req_cpu, cpu. This casue confusing cpu number like below log.

    $ cat /sys/kernel/debug/tracing/trace
    cat-317  [001] ...: workqueue_queue_work: ... req_cpu=8192 cpu=4294967295

    So, change unsigned type to signed type in the trace event. After
    applying this patch, cpu number will be printed as -1 instead of
    4294967295 as folllows.

    $ cat /sys/kernel/debug/tracing/trace
    cat-1338  [002] ...: workqueue_queue_work: ... req_cpu=8192 cpu=-1

Change-Id: I478083c350b6ec314d87e9159dc5b342b96daed7
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>