Revert "cpu: stop scheduling suspended threads in MinorCPU"

This reverts commit 6a6668bbc4b038b98eb3ee64ffb034719316afd9.
The commit was part of a patchset which broke MinorCPU regressions
(switcheroo)

Change-Id: I3c16a6478ba44b9d27cdd3d64a710a356999df05
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18603
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
3 files changed