BUG-1394: add traces

It seems that when we are processing a PCRpt, the request should already
be in the queue, but we are failing to find it. This should not occur,
so let's add some traces to pinpoint it.

Change-Id: I5c8ee574ab1c95fc25d465374a26a944ecc0b2ce
Signed-off-by: Robert Varga <rovarga@cisco.com>
Merge "BUG-1394: add traces"