Add ASSERT_FALSE macro for tests

Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
diff --git a/tests/suites/test_suite_alignment.function b/tests/suites/test_suite_alignment.function
index b9ceb59..96aef81 100644
--- a/tests/suites/test_suite_alignment.function
+++ b/tests/suites/test_suite_alignment.function
@@ -121,7 +121,7 @@
             r = MBEDTLS_BSWAP64(input);
             break;
         default:
-            TEST_ASSERT(!"size must be 16, 32 or 64");
+            ASSERT_FALSE("size must be 16, 32 or 64");
     }
     TEST_EQUAL(r, expected);