IVGCVSW-7090 Add licensing info to awkward files

Signed-off-by: Jim Flynn <jim.flynn@arm.com>
Change-Id: I908aa5c7581b7bb1eebeb8e32625c9b64a9ff7e9
diff --git a/.gitignore b/.gitignore
index 18a48d2..fa0683d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 armnn
 boost_1_64_0
 clframework
+flatbuffers-1.12.0
 prebuilt
 .vscode/settings.json
 .gitignore