mem-ruby: MESI_Three_Level fix L1 in_port ranks

mem-ruby: MESI_Three_Level fix L1 in_port ranks

The L1 cache contains three in_port networks with ranks 0-2-3.
This is a benign typo, however, this patch corrects the ranks to
0-1-2 for clarity.

Change-Id: Id9bb63dae310af0f962345a114b0ccb8bddcf696
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24257
Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>