external/boringssl: Sync to 689019fe40d5ad94df46ffeebcd794ff359a7074.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/67e64342c1aa0b31b0b5c11e5ee21c481ce530e8..689019fe40d5ad94df46ffeebcd794ff359a7074

Test: BoringSSL CTS Presubmits
Change-Id: Ib675c5478b0e45270e31248d1dadc5f4841da990
diff --git a/src/ssl/handshake_server.cc b/src/ssl/handshake_server.cc
index f0ed0d8..c546088 100644
--- a/src/ssl/handshake_server.cc
+++ b/src/ssl/handshake_server.cc
@@ -170,7 +170,7 @@
 #include "../crypto/internal.h"
 
 
-namespace bssl {
+BSSL_NAMESPACE_BEGIN
 
 bool ssl_client_cipher_list_contains_cipher(
     const SSL_CLIENT_HELLO *client_hello, uint16_t id) {
@@ -1626,4 +1626,4 @@
   return "TLS server unknown";
 }
 
-}
+BSSL_NAMESPACE_END