Add build test: FVP with no compiler optimisations

Some compiler or linker errors only arise when compiler optimisations
are disabled. Add a build test in the per-patch tests to catch these
problems early.

Change-Id: Ib6c61523278d05a852db72239db0abf251502a21
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/group/tf-l1-build-fvp/fvp-no-optimize-default:nil b/group/tf-l1-build-fvp/fvp-no-optimize-default:nil
new file mode 100644
index 0000000..45065d8
--- /dev/null
+++ b/group/tf-l1-build-fvp/fvp-no-optimize-default:nil
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2021 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+