We should be using gem5.components instead of python.gem5.components. In https://gem5-review.git.corp.google.com/c/public/gem5/+/68518 I was seeing the RISC-V tests fail with `ModuleNotFoundError: No module named 'python.gem5.components.processors.base_cpu_core'`. This fixes the issue for me with the RISC-V tests. I also searched for other similar imports and I've removed a similar (unused) one in x86_boot_exit_run.py. Change-Id: I61a0c4c27724854956f778f14e1fcfafea927ffd Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68757 Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu> Maintainer: Bobby Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>