COMPMID-417 Update FIXME / INTERNAL_ONLY comments in files which need removing before releasing

Change-Id: Iaebff59323758937326c3fbe8c80138ddbb57163
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/87879
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/scripts/add_copyright.py b/scripts/add_copyright.py
index 4a86497..0c5b8f0 100755
--- a/scripts/add_copyright.py
+++ b/scripts/add_copyright.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+#FIXME: Remove this file before the release
 
 import glob
 import os.path