cpu-o3: add more DPRINTF for when cache is blocked

Add DPRINTF to track the non execution of memory instructions
when the cache is blocked and their rescheduling when cache
unblocks.

Change-Id: Ieb5eddceaf50ae574ce079e21eb00ac8eaa754ae
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47042
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed