cpu: Make the indirect predictor into a SimObject

Change-Id: Ice6549773def7d3e944fae450d4a079bc351e2ba
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/15319
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
8 files changed