Upgrade libfdt source files

This version corresponds to the following commit <7be250b>
libfdt: Correct condition for reordering blocks

Also, updated the Juno romlib jumptable with fdt APIs.

Change-Id: Ib6d28c1aea81c2144a263958f0792cc4daea7a1f
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/plat/arm/board/juno/jmptbl.i b/plat/arm/board/juno/jmptbl.i
index 20ed2c7..393a648 100644
--- a/plat/arm/board/juno/jmptbl.i
+++ b/plat/arm/board/juno/jmptbl.i
@@ -29,6 +29,8 @@
 fdt     fdt_get_alias_namelen
 fdt     fdt_path_offset
 fdt     fdt_path_offset_namelen
+fdt     fdt_address_cells
+fdt     fdt_size_cells
 fdt     fdt_get_name
 fdt     fdt_get_alias
 fdt     fdt_node_offset_by_phandle