misc: Update version info to v22.0.0.2

Change-Id: I102ffac04547a5fab49d6d87b0a53f6cf0b44395
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/61737
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed