Hotfix: Fix tests build issues

- Remove unused test/suites folder
- Re-enable TF-M to build secure tests alone by including raw log
  library in NS tests and BL2 tests.
- Add TEST_BL2 flag to select raw log in BL2 tests instead of using
  DOMAIN_NS=1. Setting DOMAIN_NS=1 in BL2 build is confusing.
- Remove root CMakeLists.txt as NS app, raw log and tests builds are
  split again.

Signed-off-by: David Hu <david.hu@arm.com>
Change-Id: I01e2e80d63bfebb54d056c3e03a346b466a5e025
6 files changed