misc: Revert version info back to develop

Change-Id: I0afb7e18c66a829fe1f1f3330da3300c0d0eb99b
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47160
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
3 files changed