Admission control supportability: update profile before scheduling/queuing

A few small but important supportability improvements for
admission control:
1) Set the admission control resource pool before calling
into scheduling.
2) Set the summary profile info strings for queuing
information before blocking on the queue.
3) Some minor logging changes.

1 and 2 will expose important information before a request
is queued so that users can observe what is happening while
a query is waiting to be admitted.