mem-ruby: Move Bloom Filters to base

mem-ruby: Move Bloom Filters to base

All Bloom Filters are completely independent of Ruby, and
therefore can be used everywhere.

As a side effect, Ruby was not using the filters, so
their dependency was removed.

Change-Id: Ic5f430610c33c0791fb81c79101ebe737189497e
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18875
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>