Use a fetched cipher for the TLSv1.3 early secret

We should use an explicitly fetched cipher to ensure that we are using
the correct libctx and property query.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11402)

test/tls13secretstest.c

diff --git a/test/tls13secretstest.c b/test/tls13secretstest.c
index 5d61476..c6f65ea 100644
--- a/test/tls13secretstest.c
+++ b/test/tls13secretstest.c
@@ -165,6 +165,12 @@
 {
 }
 
+int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc,
+                                     const EVP_CIPHER **enc)
+{
+    return 0;
+}
+
 int ssl_cipher_get_evp(SSL_CTX *ctx, const SSL_SESSION *s,
                        const EVP_CIPHER **enc, const EVP_MD **md,
                        int *mac_pkey_type, size_t *mac_secret_size,