ssl/ssl_ciph.c: make set_ciphersuites static

Fixes #7252
Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NPaul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7253)

(cherry picked from commit f9a22815f386dbe7a13822f0ac3629ae8521cd76)

ssl/ssl_ciph.c

@@ -1301,7 +1301,7 @@ static int ciphersuite_cb(const char *elem, int len, void *arg)
     return 1;
 }
 
-int set_ciphersuites(STACK_OF(SSL_CIPHER) **currciphers, const char *str)
+static __owur int set_ciphersuites(STACK_OF(SSL_CIPHER) **currciphers, const char *str)
 {
     STACK_OF(SSL_CIPHER) *newciphers = sk_SSL_CIPHER_new_null();
 

ssl/ssl_locl.h

@@ -2251,7 +2251,6 @@ __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
                                  const SSL_CIPHER *const *bp);
-__owur int set_ciphersuites(STACK_OF(SSL_CIPHER) **currciphers, const char *str);
 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
                                                     STACK_OF(SSL_CIPHER) *tls13_ciphersuites,
                                                     STACK_OF(SSL_CIPHER) **cipher_list,