For tests, rename ASSERT_COMPARE() to TEST_BUFFERS_EQUAL()

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/suites/test_suite_constant_time.function b/tests/suites/test_suite_constant_time.function
index a40149a..03c5a67 100644
--- a/tests/suites/test_suite_constant_time.function
+++ b/tests/suites/test_suite_constant_time.function
@@ -38,7 +38,7 @@
         TEST_CF_PUBLIC(&secret, sizeof(secret));
         TEST_CF_PUBLIC(dst, len);
 
-        ASSERT_COMPARE(dst, len, src + secret, len);
+        TEST_BUFFERS_EQUAL(dst, len, src + secret, len);
     }
 
 exit: