feat(versal): add platform specific testcase

Add common platform test to read the PM-API version and Chip ID.
Specify TESTS=versal in make command. This will append the versal specific
tests to standard tests

--
Running test suite 'AMD-Xilinx tests'
Description: AMD-Xilinx common platform tests

> Executing 'Read PM API Version'
  TEST COMPLETE                                                 Passed
test_pmapi_version PM-API Version : 1.0

> Executing 'Get Platform Chip ID'
  TEST COMPLETE                                                 Passed
test_get_chipid Idcode = 0x14ca8093 Version = 0x302020

--

Signed-off-by: Akshay Belsare <Akshay.Belsare@amd.com>
Change-Id: I33fbdd42427fd0913001b83990e98b8ecbcc2282
diff --git a/tftf/tests/tests-versal.mk b/tftf/tests/tests-versal.mk
new file mode 100644
index 0000000..6717ee5
--- /dev/null
+++ b/tftf/tests/tests-versal.mk
@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+TESTS_SOURCES   +=      $(addprefix tftf/tests/plat/xilinx/common/,            \
+        plat_pm.c                                                              \
+)
+
+
+include tftf/tests/tests-standard.mk
+TESTS_SOURCES += $(sort ${TESTS_SOURCES})