NO PARTIAL RERUN external/boringssl: Sync to cb15cfda29c0c60d8d74145b17c93b43a7667837.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/37c6eb4284bea36be9fa41d35b582008f2023dcf..cb15cfda29c0c60d8d74145b17c93b43a7667837

Test: BoringSSL CTS Presubmits
Change-Id: I8a20a38a338c40600b7b1034cd1d750d8ce2cbe6
diff --git a/sources.bp b/sources.bp
index 089bd9b..8cf85c0 100644
--- a/sources.bp
+++ b/sources.bp
@@ -424,6 +424,7 @@
         "src/crypto/pool/pool_test.cc",
         "src/crypto/refcount_test.cc",
         "src/crypto/rsa_extra/rsa_test.cc",
+        "src/crypto/self_test.cc",
         "src/crypto/test/file_test_gtest.cc",
         "src/crypto/test/gtest_main.cc",
         "src/crypto/thread_test.cc",