mem-ruby: AbstractController unaddressed profiling

Adds support for profiling "unaddressed" transactions,
which are associated with a unique ID rather than a memory address,
to AbstractController.

JIRA: https://gem5.atlassian.net/browse/GEM5-1097

Change-Id: Ib75f3f38dc4910acc2ad4f1c7bf88c9193568203
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57297
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed