dmprof expand command supports to analyze multiple components with same name in different allocators

Enhance the dmprof expand command to analyze multiple components with same name in different allocators. This can help to define policy by services, no need to divide by tc- and mmap-.

R=kouhei@chromium.org
BUG=427390

Review URL: https://codereview.chromium.org/692343003

Cr-Commit-Position: refs/heads/master@{#304396}
2 files changed