This feature is not used in most tests, as there is no logic in C code that
utilizes `#ifdef TEST_x` statement.
The only test that does that is `tests/subsys/settings/fcb/` where `#ifdef
TEST_LONG` is used, so leave that test case untouched.
Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
./raw directories for each testsuite were remains after having
base64 encoding test variant beside which raw variant was existing.
This patch flatten the directories structures.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>