arch,base,cpu,dev,kern,mem,sim: Drop FS from FSTranslatingPortProxy.

arch,base,cpu,dev,kern,mem,sim: Drop FS from FSTranslatingPortProxy.

This translating proxy can be used in FS, or in SE with a failure
handing case in place.

Change-Id: I2e6421f52529fa833e42f8d3e64d4341c282634f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/26551
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>