stdlib: Change the default Looppoint JSON output to m5out

Change-Id: I6ac9aa55dfd4a0250c487ae743a1f4ea0b1bc154
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67491
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
1 file changed