Add license file for 'fiat'

Bug: None
Change-Id: I61c2cb30f3b1d8770dd9cd5b74571cab14adc522
Reviewed-on: https://webrtc-review.googlesource.com/39800
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21629}
diff --git a/tools_webrtc/libs/generate_licenses.py b/tools_webrtc/libs/generate_licenses.py
index 5cb8011..6ae56dc 100755
--- a/tools_webrtc/libs/generate_licenses.py
+++ b/tools_webrtc/libs/generate_licenses.py
@@ -27,6 +27,7 @@
     'boringssl': ['third_party/boringssl/src/LICENSE'],
     'errorprone': ['third_party/errorprone/LICENSE'],
     'expat': ['third_party/expat/files/COPYING'],
+    'fiat': ['third_party/boringssl/src/third_party/fiat/LICENSE'],
     'guava': ['third_party/guava/LICENSE'],
     'ijar': ['third_party/ijar/LICENSE'],
     'jsoncpp': ['third_party/jsoncpp/LICENSE'],