Export EVP_PKEY_set_alias_type in FUNCTIONS to support to use SM2 algorithms

[hustliyilin]

In openssl 1.1.1 docs/man3/EVP_PKEY_set1_RSA.pod
(https://github.com/openssl/openssl/blob/OpenSSL_1_1_1/doc/man3/EVP_PKEY_set1_RSA.pod)
The EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2) API is possible to convert it to using
SM2 algorithms After loading an ECC key.

So the EVP_PKEY_set_alias_type API is important for people who want to use cryptography
with . Therefore, we need to export EVP_PKEY_set_alias_type in FUNCTIONS.