C file should not include <cinttypes>, it is a C++ header. (#5499)

Summary:
Include <inttypes.h> instead.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5499

Differential Revision: D15966937

Pulled By: miasantreble

fbshipit-source-id: 2156c4329b91d26d447de94f1231264d52786350

util/crc32c_ppc.c

@@ -6,7 +6,7 @@
 //  (found in the LICENSE.Apache file in the root directory).
 
 #define CRC_TABLE
-#include <cinttypes>
+#include <stdint.h>
 #include <stdlib.h>
 #include <strings.h>
 #include "util/crc32c_ppc_constants.h"