Fix compatibility macros for SHA512 These have swapped names in their macro values.
diff --git a/include/sha512.h b/include/sha512.h
index db300f1..d050001 100644
--- a/include/sha512.h
+++ b/include/sha512.h
@@ -46,8 +46,8 @@ typedef SHA2_CTX SHA384_CTX;
#define SHA512_Update SHA512Update
#define SHA512_Final SHA512Final
#define SHA512_End SHA512End
-#define SHA512_Data SHA512File
-#define SHA512_File SHA512FileChunk
-#define SHA512_FileChunk SHA512Data
+#define SHA512_Data SHA512Data
+#define SHA512_File SHA512File
+#define SHA512_FileChunk SHA512FileChunk
#endif