directed tests: Enable remaining tests in HIT infrastructure

Change-Id: I800ee00d6f7d339bb5d2ed898a16362a8541ed3a

hipamd/tests/src/deviceLib/hip_ffs.cpp

@@ -20,6 +20,12 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
 
+/* HIT_START
+ * BUILD: %t %s ../test_common.cpp
+ * RUN: %t
+ * HIT_END
+ */
+
 #include <assert.h>
 #include <stdio.h>
 #include <algorithm>