Change:
EVP_RAND_gettable_ctx_params -> EVP_RAND_CTX_gettable_params
EVP_RAND_settable_ctx_params -> EVP_RAND_CTX_settable_params
Which brings them in line with the other similar functions for other algorithm
types.
Fixes#14880
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14893)