This change introduces a fake iobus device into gem5 to prevent it from crashing on bogus I/O memory accesses. Change-Id: Ie69e3191bdd917cc681269852937a5a3820a93fb
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a