address win32 build issues

- Replace external -DOPENSSL/-DPKCS11CRYPTO with properly AC_DEFINEd
  HAVE_OPENSSL/HAVE_PKCS11
- Don't enforce the crypto provider from platform.h, just from dst_api.c
  and configure scripts

lib/dns/compress.c

@@ -9,12 +9,12 @@
  * information regarding copyright ownership.
  */
 
+#include <config.h>
+
 /*! \file */
 
 #define DNS_NAME_USEINLINE 1
 
-#include <config.h>
-
 #include <isc/mem.h>
 #include <isc/string.h>
 #include <isc/util.h>