feat(trbe): add trace buffer control registers access test

Added a test to read trace buffer control registers to ensure that
EL3 is giving permission to non-secure EL2 to access these registers.

Change-Id: I70faa5bb7e0bc648fbc3d14cb9c1b8da3470a201
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/tftf/tests/tests-cpu-extensions.mk b/tftf/tests/tests-cpu-extensions.mk
index fedf783..a4e5d11 100644
--- a/tftf/tests/tests-cpu-extensions.mk
+++ b/tftf/tests/tests-cpu-extensions.mk
@@ -1,18 +1,19 @@
 #
-# Copyright (c) 2018-2020, Arm Limited. All rights reserved.
+# Copyright (c) 2018-2021, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
 TESTS_SOURCES	+=	$(addprefix tftf/tests/,			\
 	extensions/amu/test_amu.c					\
+	extensions/ecv/test_ecv.c					\
+	extensions/fgt/test_fgt.c					\
 	extensions/mte/test_mte.c					\
+	extensions/pauth/test_pauth.c					\
 	extensions/sve/sve_operations.S					\
 	extensions/sve/test_sve.c					\
-	extensions/fgt/test_fgt.c					\
-	extensions/ecv/test_ecv.c					\
+	extensions/trbe/test_trbe.c					\
+	runtime_services/arm_arch_svc/smccc_arch_soc_id.c		\
 	runtime_services/arm_arch_svc/smccc_arch_workaround_1.c		\
 	runtime_services/arm_arch_svc/smccc_arch_workaround_2.c		\
-	runtime_services/arm_arch_svc/smccc_arch_soc_id.c		\
-	extensions/pauth/test_pauth.c					\
 )