sim-se: Fix invalid delete of params on clone

sim-se: Fix invalid delete of params on clone

The params pointer is kept by the SimObject and should not be deleted
until gem5 exits. Added a to do to remember this object is leaked.

Change-Id: I46cc23a09e4e9b6bc2fdcd961148324c41820815
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18068
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>