configs: Stop using a PTW cache before L2 in Arm configs
This implementation of a walk cache does not allow to skip walks as it
is a simple cache placed in front of the table walker.
It was meant to provide a faster retrieval of page table descriptors
than fetching them from L2 or memory.
This is not needed anymore for Arm as from  we implement
partial translation caching in Arm TLBs.
: JIRA: https://gem5.atlassian.net/browse/GEM5-1108
Signed-off-by: Giacomo Travaglini <firstname.lastname@example.org>
Reviewed-by: Richard Cooper <email@example.com>
Reviewed-by: Andreas Sandberg <firstname.lastname@example.org>
Maintainer: Jason Lowe-Power <email@example.com>
Tested-by: kokoro <firstname.lastname@example.org>
7 files changed