This CL adds a new "root" test suite for trace_marker integration tests,
since the tests require root to run in order to access the kernel's
tracefs mounted partition.
BUG=b:273379306
TEST=CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER='sudo -E' cargo test --features=trace_marker
Change-Id: I4656374023d91d87959f6ce0d59eb9e51bdc77bd
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4349039
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Auto-Submit: Morg <morg@chromium.org>
Commit-Queue: Morg <morg@chromium.org>
