test: Add name to test plan unit.

Naming units will be useful for explaining plan execution
to the user.

BUG=chromium:1063474
TEST=./generate.sh

Change-Id: If5296700e9e27e2019705bc80f19d0e93c19b793
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2111111
Reviewed-by: Alex Zamorzaev <zamorzaev@chromium.org>
Commit-Queue: Prathmesh Prabhu <pprabhu@chromium.org>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
2 files changed