mem-ruby: fix state updates on WriteCleanFull
mem-ruby: fix state updates on WriteCleanFull

- fix wrong variable check at UpdateDirState_FromReqDataResp
- even after a WriteClean, dataMaybeDirtyUpstream still applies if
  there is an exclusive owner upstream.

JIRA: https://gem5.atlassian.net/browse/GEM5-1195

Change-Id: If1fa3ee40e30226db3a66c34633316e751eb7c4d
Signed-off-by: Tiago Mück <02f879f33eea3aaf6781160757a59709a6f01bed@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57391
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>
Reviewed-by: Daecheol You <455369ad2bae42ffe7de698a2598f5b08ad81d61@samsung.com>
Maintainer: Jason Lowe-Power <92de577f37050ad05b60626d2f17913f40dcb1a2@gmail.com>

gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5