external/boringssl: Sync to 5e578c9dba73460c3eb17f771c77fc8e36f7812e.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/58e449904e248f34bdfc2be7a609c58bcb0257b7..5e578c9dba73460c3eb17f771c77fc8e36f7812e

Test: BoringSSL CTS Presubmits
Change-Id: Ic1541b034545fa58a284ca35134b3719303455c7
diff --git a/src/include/openssl/dsa.h b/src/include/openssl/dsa.h
index 2988877..afe0291 100644
--- a/src/include/openssl/dsa.h
+++ b/src/include/openssl/dsa.h
@@ -296,7 +296,7 @@
 
 OPENSSL_EXPORT int DSA_get_ex_new_index(long argl, void *argp,
                                         CRYPTO_EX_unused *unused,
-                                        CRYPTO_EX_dup *dup_func,
+                                        CRYPTO_EX_dup *dup_unused,
                                         CRYPTO_EX_free *free_func);
 OPENSSL_EXPORT int DSA_set_ex_data(DSA *d, int idx, void *arg);
 OPENSSL_EXPORT void *DSA_get_ex_data(const DSA *d, int idx);