stdlib: Remove setting of 'kvm_vm' from SwitchableProcessor

This stops a `kvm_mv already has parent` warning from happening when
using a SwitchableProcessor.

Change-Id: I495a040e03c33228ceafc99a94b0d0957f4ff6a2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62657
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
1 file changed