googletest/README.libaom: add Chromium required fields

+ make License more specific to match the allow list

Bug: 421988923
Fixed: 421988923
Change-Id: Ib936d38e77b4763f063b25f428fd9eb7aa2a5d09

third_party/googletest/README.libaom

diff --git a/third_party/googletest/README.libaom b/third_party/googletest/README.libaom
index 3b21c8e..bb17dee 100644
--- a/third_party/googletest/README.libaom
+++ b/third_party/googletest/README.libaom
@@ -1,7 +1,11 @@
+Name: Google Test: Google's C++ Testing Framework
+Short Name: googletest
 URL: https://github.com/google/googletest
 Version: release-1.12.1
-License: BSD
+License: BSD-3-Clause
 License File: LICENSE
+Shipped in Chromium: no
+Security Critical: no
 
 Description:
 Google's framework for writing C++ tests on a variety of platforms