CFT: Increase size of test output stream scanner 4MB -> 16MB.

BUG=b:398992364
TEST=CQ

Change-Id: I71d24e25c22a1971cac38e992780383017f7f9a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/6307565
Reviewed-by: Allen Xie <zhihuixie@google.com>
Auto-Submit: Alex Bergman <abergman@google.com>
Commit-Queue: Alex Bergman <abergman@google.com>
Tested-by: Alex Bergman <abergman@google.com>
1 file changed