Fix bssl speed.

The TLS AEADs require EVP_AEAD_CTX_init_with_direction now. The speed command
was never updated to account for this.

BUG=467762

Change-Id: I8c7d4566b51d54d91d17318b8f4813ad8f19c777
Reviewed-on: https://boringssl-review.googlesource.com/3971
Reviewed-by: Adam Langley <agl@google.com>

tool/speed.cc

@@ -195,8 +195,9 @@ static bool SpeedAEADChunk(const EVP_AEAD *aead, const std::string &name,
   uint8_t *const out = align(out_storage.get(), kAlignment);
   memset(out, 0, chunk_len + overhead_len);
 
-  if (!EVP_AEAD_CTX_init(&ctx, aead, key.get(), key_len,
-                         EVP_AEAD_DEFAULT_TAG_LENGTH, NULL)) {
+  if (!EVP_AEAD_CTX_init_with_direction(&ctx, aead, key.get(), key_len,
+                                        EVP_AEAD_DEFAULT_TAG_LENGTH,
+                                        evp_aead_seal)) {
     fprintf(stderr, "Failed to create EVP_AEAD_CTX.\n");
     BIO_print_errors_fp(stderr);
     return false;