[libfdt]: does not create array nodes properly

[FFO]

Note: this is a bug of DTC version 1.4.0 that is working properly with 1.4.2 (don't know what version actually solved the bug)

Way to reproduce:
compile the test program below:

gcc -o testdt testdt.c -lfdt
./testdt > test.dtb
fdtdump test.dtb

The values of reg are incorrect for 1.4.0 and correct for 1.4.2

-----
# testdt.c

#include <libfdt.h>
#include <stdlib.h>
#include <stdio.h>

#define _FDT(code) \
 { \
  int err = (code); \
  if (err) \
   fprintf(stderr, #code ": %s", fdt_strerror(err)); \
 }

static inline int fdt_property_reg64(void *fdt, const char *name, uint64_t val1, uint32_t val2)
{
 struct {
  fdt64_t address;
  fdt32_t size;
 } __attribute__((packed)) val;
 val.address = cpu_to_fdt64(val1);
 val.size = cpu_to_fdt32(val2);
 return fdt_property(fdt, name, (void*)&val, sizeof(val));
}

int main(void)
{
#define SIZE 4096
 void *staging_fdt = calloc(SIZE, 1);
 _FDT(fdt_create(staging_fdt, SIZE));
 _FDT(fdt_finish_reservemap(staging_fdt));
 _FDT(fdt_begin_node(staging_fdt, ""));
 _FDT(fdt_begin_node(staging_fdt, "soc"));
 _FDT(fdt_property_cell(staging_fdt, "#address-cells", 0x2));
 _FDT(fdt_property_cell(staging_fdt, "#size-cells", 0x1));
 _FDT(fdt_begin_node(staging_fdt, "kvm-gpio@0e0000"));
 _FDT(fdt_property_string(staging_fdt, "compatible", "basic-mmio-gpio"));
 _FDT(fdt_property_reg64(staging_fdt, "reg", 0xe0000ULL, 4));
 _FDT(fdt_end_node(staging_fdt));
 _FDT(fdt_end_node(staging_fdt));
 _FDT(fdt_end_node(staging_fdt));
 _FDT(fdt_finish(staging_fdt));

 fwrite(staging_fdt, fdt_totalsize(staging_fdt), 1, stdout);

 return 0;
}