[BUGFIX] Define the Cache configuration

Use a default cache configuration and not the cache_core as base
for the autoloader cache configuration.

Change-Id: I1d8e210cc9ce1b477c3e0f0cb01f90cd9e3a2586
Reviewed-on: https://review.typo3.org/31530
Reviewed-by: Tim Spiekerkötter
Tested-by: Tim Spiekerkötter