fix incorrect folder name for julia-0.6.x

Former-commit-id: ef2c7401e0876f22d2f7762d182cfbcd5a7d9c70

julia-0.6.3/include/julia/crc32c.h

@@ -0,0 +1,19 @@
+// This file is a part of Julia. License is MIT: https://julialang.org/license
+
+#ifndef CRC32C_H
+#define CRC32C_H 1
+
+#include "dtypes.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+JL_DLLEXPORT void jl_crc32c_init(int force_sw);
+JL_DLLEXPORT uint32_t jl_crc32c(uint32_t crc, const void *buf, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CRC32C_H */