faft: Create control files for Level-1 to Level-4 FAFT suites

Having these small control files, we can run a small amount of test cases
easily.

All BIOS tests are categorized into 4 test levels:
  Level-1: Basic BIOS tests which verify basic vboot functions.
  Level-2: Recovery BIOS tests which need external USB disk.
  Level-3: Corruption BIOS tests which modify firmware/kernel image.
           These tests may corrupt the system if any failure happens.
  Level-4: Advanced BIOS tests which verify not-so-critical features.

BUG=chromium-os:32859
TEST=run_remote_tests.sh --remote=$DUT control.faft_bios
     run_remote_tests.sh --remote=$DUT control.faft_lv1
     run_remote_tests.sh --remote=$DUT control.faft_lv2
     run_remote_tests.sh --remote=$DUT -a "new_ec=$EC" control.faft_lv3
     run_remote_tests.sh --remote=$DUT control.faft_lv4

Change-Id: I6dceaa45b84efde6be32b69e9e91d20b8655d571
Reviewed-on: https://gerrit.chromium.org/gerrit/33162
Reviewed-by: Mike Truty <truty@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
5 files changed