This patch is dedicated to improve SHA512 speed with RISCV
Cryptographic Vector Extension.
Below performance output is calculated by Xuantie C930 FPGA with VLEN256.
- sha512 speed might be improved from 197032K to 1010986KB
Reviewed-by: Paul Yang <paulyang.inf@gmail.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/29263)
93119bae7f