Break the build

DO NOT MERGE, only for CI testing.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f31794d..94f630c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,4 @@
+barf
 #
 # CMake build system design considerations:
 #