Add a build test for QEMU SBSA platform

Build test for stack protection checks based on random canary value
generated out of Armv8.5 RNDR system register on QEMU SBSA platform.

This is related to the following TF-A patch:
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/7775/4

Change-Id: I4d1111018772c742da6b7b02ce711c5a7ebd45c1
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/group/tf-l1-build-plat/qemu_sbsa-stack-protector-rndcanary:nil b/group/tf-l1-build-plat/qemu_sbsa-stack-protector-rndcanary:nil
new file mode 100644
index 0000000..45065d8
--- /dev/null
+++ b/group/tf-l1-build-plat/qemu_sbsa-stack-protector-rndcanary:nil
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2021 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
diff --git a/tf_config/qemu_sbsa-stack-protector-rndcanary b/tf_config/qemu_sbsa-stack-protector-rndcanary
new file mode 100644
index 0000000..b25ad54
--- /dev/null
+++ b/tf_config/qemu_sbsa-stack-protector-rndcanary
@@ -0,0 +1,6 @@
+ARM_ARCH_FEATURE=rng
+ARM_ARCH_MAJOR=8
+ARM_ARCH_MINOR=5
+CROSS_COMPILE=aarch64-none-elf-
+ENABLE_STACK_PROTECTOR=strong
+PLAT=qemu_sbsa