tests: added TC_START to tests

TC_START was missing from some tests. For this reason automated testing
parsing wasn't unified for all tests. This patch fixes the issue and adds
TC_START to tests where it was missing.

Change-Id: I7e27a3fd8eaef9c3d0b0e0aeba9bca5b97eb0c58
Signed-off-by: Milosz Wasilewski <milosz.wasilewski@linaro.org>