configs: Fix replacement policy assignment

configs: Fix replacement policy assignment

Commit d207e9ccee411877fdeac80bb68a27900560f50f reworked the tags
to split the replacement policies, however the name of the variable
that contains the replacement policy changed between patch revisions,
which was not updated accordingly in the configs files.

Change-Id: I2072529e2c7d54197c371bcaa323bfd9f34ec3ba
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20548
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>