configs: fix class reference in CacheConfigs

One reference was not properly updated when changing to absolute import paths

Change-Id: Idf330487d5d08d92ebb4489f16d75429f882bd7a
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17541
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
1 file changed