For tests, rename TEST_BUFFERS_EQUAL() to TEST_MEMORY_COMPARE()

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/suites/test_suite_pkwrite.function b/tests/suites/test_suite_pkwrite.function
index 88d0dd2..e6bcb26 100644
--- a/tests/suites/test_suite_pkwrite.function
+++ b/tests/suites/test_suite_pkwrite.function
@@ -94,7 +94,7 @@
         start_buf = buf;
     }
 
-    TEST_BUFFERS_EQUAL(start_buf, buf_len, check_buf, check_buf_len);
+    TEST_MEMORY_COMPARE(start_buf, buf_len, check_buf, check_buf_len);
 
 exit:
     mbedtls_free(buf);
@@ -150,7 +150,7 @@
     TEST_EQUAL(mbedtls_pk_write_pubkey_der(&priv_key, derived_key_raw,
                                            derived_key_len), pub_key_len);
 
-    TEST_BUFFERS_EQUAL(derived_key_raw, derived_key_len,
+    TEST_MEMORY_COMPARE(derived_key_raw, derived_key_len,
                    pub_key_raw, pub_key_len);
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -162,7 +162,7 @@
     TEST_EQUAL(mbedtls_pk_write_pubkey_der(&priv_key, derived_key_raw,
                                            derived_key_len), pub_key_len);
 
-    TEST_BUFFERS_EQUAL(derived_key_raw, derived_key_len,
+    TEST_MEMORY_COMPARE(derived_key_raw, derived_key_len,
                    pub_key_raw, pub_key_len);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */