Add missing #ifndefs that caused missing symbols when building libssl

as a shared library without RSA.  Use #ifndef NO_SSL2 instead of
NO_RSA in ssl/s2*.c.

Submitted by: Kris Kennaway <kris@hub.freebsd.org>
Modified by Ulf Möller

ssl/s2_enc.c

@@ -56,8 +56,9 @@
  * [including the GNU Public Licence.]
  */
 
-#include <stdio.h>
 #include "ssl_locl.h"
+#ifndef NO_SSL2
+#include <stdio.h>
 
 int ssl2_enc_init(SSL *s, int client)
 	{
@@ -177,4 +178,10 @@ void ssl2_mac(SSL *s, unsigned char *md, int send)
 	EVP_DigestFinal(&c,md,NULL);
 	/* some would say I should zero the md context */
 	}
+#else /* !NO_SSL2 */
 
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
+
+#endif