external/boringssl: Sync to 9770532afa91dd1441ba0d3e9d4bb86d7e501f19.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/915c121bb5d424e09bf05c3aabf172a44e958e28..9770532afa91dd1441ba0d3e9d4bb86d7e501f19

Test: BoringSSL CTS Presubmits
Change-Id: Ie17b7876e646e842f5d71ffeed0ba4be248a434e
diff --git a/src/crypto/test/CMakeLists.txt b/src/crypto/test/CMakeLists.txt
index 8857913..46a40f8 100644
--- a/src/crypto/test/CMakeLists.txt
+++ b/src/crypto/test/CMakeLists.txt
@@ -9,7 +9,7 @@
 )
 
 add_library(
-  gtest_main
+  boringssl_gtest_main
 
   OBJECT