dep/libchdr: Sync to upstream (82670d5)

dep/libchdr/include/libchdr/chdconfig.h

@@ -0,0 +1,10 @@
+#ifndef __CHDCONFIG_H__
+#define __CHDCONFIG_H__
+
+/* Configure CHDR features here */
+#define WANT_RAW_DATA_SECTOR    1
+#define WANT_SUBCODE            1
+#define NEED_CACHE_HUNK         1
+#define VERIFY_BLOCK_CRC        1
+
+#endif