Adapt dumpstate to perfetto-based SurfaceFlinger tracing

- Include system trace (perfetto) into the pre-dumped data.
- Snapshot the system trace (perfetto) first to avoid
  that dumpsys critical's activity pushes out interesting
  data from the trace ring buffer.

Bug: b/293429094
Bug: b/296650898
Test: atest dumpstate_test && \
    atest com.android.os.bugreports.tests.BugreportManagerTest
Ignore-AOSP-First: depends on changes (surfaceflinger) that cannot go into AOSP
Change-Id: Iccf9f92989c317a29ffa4c806afd6eab1da7976a