chore(libfdt): update to v1.7.0 source files

Update libfdt to source files from v1.7.0 release.
Upstream commit:
https://github.com/dgibson/dtc/commit/039a99414e778332d8f9c04cbd3072e1dcc62798

Change-Id: I7e0475d2ddb819691f476e1753d1c899f8d7c278
Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
1 file changed