crypto: Remove crypto_rsa.h from crypto_digest.c.

 * ADD include for "crypto_openssl_mgt.h" so that we have OpenSSL
   defined SHA* types and functions.
 * FIXES part of #24658: https://bugs.torproject.org/24658#comment:30

src/common/crypto_digest.c

@@ -13,7 +13,7 @@
 #include "crypto_digest.h"
 
 #include "crypto.h" /* common functions */
-#include "crypto_rsa.h"
+#include "crypto_openssl_mgt.h"
 
 DISABLE_GCC_WARNING(redundant-decls)