mem-garnet: Use smart pointers for CrossbarSwitch's members

Use smart pointers for the pointers managed by CrossbarSwitch.

Change-Id: I71958c72cde5981d730aa3f68bba0ffbe4c2506f
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24244
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed