feat(tc): add delegated attest and measurement tests

This patch adds Delegated Attestation and Measured Boot tests to the
plat/arm/board/tc platform.
The test suite can be activated by adding the build time option
`PLATFORM_TEST=1` to the make command. In this case the boot sequence is
not finished, plat_error_handler is called after the tests are run
(regardless of the test result.)

The actual test code is coming from the Trusted-Firmware-M project. Some
of the files of the tf-m-tests and tf-m-extras repo are linked to the
BL31 image.

Versions used for testing:
https://git.trustedfirmware.org/TF-M/tf-m-tests
    614e8c358377e4146e8ee13d1246e59d01b4bf1b

https: //git.trustedfirmware.org/TF-M/tf-m-extras
    3be9fdd557e6df449de93c2101973fb011699b3d

Change-Id: I98f0f5f760a39d2d7e0dd11d33663ddb75f0b6fc
Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
diff --git a/plat/arm/board/tc/rss_ap_tests.c b/plat/arm/board/tc/rss_ap_tests.c
new file mode 100644
index 0000000..b62043e
--- /dev/null
+++ b/plat/arm/board/tc/rss_ap_tests.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2022, Arm Ltd. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+#include <mbedtls_common.h>
+#include <plat/common/platform.h>
+#include <psa/crypto.h>
+#include <rss_comms.h>
+
+#include "rss_ap_testsuites.h"
+
+static struct test_suite_t test_suites[] = {
+	{.freg = register_testsuite_delegated_attest},
+	{.freg = register_testsuite_measured_boot},
+};
+
+static void run_tests(void)
+{
+	enum test_suite_err_t ret;
+	psa_status_t status;
+	size_t i;
+
+	rss_comms_init(PLAT_RSS_AP_SND_MHU_BASE, PLAT_RSS_AP_RCV_MHU_BASE);
+	mbedtls_init();
+	status = psa_crypto_init();
+	if (status != PSA_SUCCESS) {
+		printf("\n\npsa_crypto_init failed (status = %d)\n", status);
+		assert(false);
+		plat_error_handler(-1);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(test_suites); ++i) {
+		struct test_suite_t *suite = &(test_suites[i]);
+
+		suite->freg(suite);
+		ret = run_testsuite(suite);
+		if (ret != TEST_SUITE_ERR_NO_ERROR) {
+			printf("\n\nError during executing testsuite '%s'.\n", suite->name);
+			assert(false);
+			plat_error_handler(-1);
+		}
+	}
+	printf("\nAll tests are run.\n");
+}
+
+void run_platform_tests(void)
+{
+	size_t i;
+
+	run_tests();
+
+	printf("\n\n");
+
+	/* Print a summary of all the tests that had been run. */
+	printf("SUMMARY:\n");
+	for (i = 0; i < ARRAY_SIZE(test_suites); ++i) {
+
+		struct test_suite_t *suite = &(test_suites[i]);
+
+		switch (suite->val) {
+		case TEST_PASSED:
+			printf("    %s PASSED.\n", suite->name);
+			break;
+		case TEST_FAILED:
+			printf("    %s FAILED.\n", suite->name);
+			break;
+		case TEST_SKIPPED:
+			printf("    %s SKIPPED.\n", suite->name);
+			break;
+		default:
+			assert(false);
+			break;
+		}
+	}
+
+	printf("\n\n");
+}