fastfeat/README.libaom: add Chromium required fields

+ make License more specific to match the allow list

Bug: 421989510
Fixed: 421989510
Change-Id: Ia1259bc5dd0da211bc75ce18b4e705a68a43906f

third_party/fastfeat/README.libaom

diff --git a/third_party/fastfeat/README.libaom b/third_party/fastfeat/README.libaom
index 75e164f..83b083b 100644
--- a/third_party/fastfeat/README.libaom
+++ b/third_party/fastfeat/README.libaom
@@ -1,7 +1,10 @@
+Name: FAST feature detectors in C Version 2.0
 URL: https://github.com/edrosten/fast-C-src
 Version: 391d5e939eb1545d24c10533d7de424db8d9c191
-License: BSD
+License: BSD-3-Clause
 License File: LICENSE
+Shipped in Chromium: no
+Security Critical: yes
 
 Description:
 Library to compute FAST features with non-maximum suppression.