QUIC: removed key field from ngx_quic_secret_t. It is made local as it is only needed now when creating crypto context. BoringSSL lacks EVP interface for ChaCha20, providing instead a function for one-shot encryption, thus hp is still preserved. Based on a patch by Roman Arutyunyan.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


cat << END >> $NGX_AUTO_CONFIG_H

#ifndef $have
#define $have  0
#endif

END