python,util: Pull param struct generation code out of SimObject.

Change-Id: I9f9c3b858a214650f6f07e6127bb316a227982a0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49450
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
3 files changed