Include libfdt.h was moved by commit b08c8c487083 ("libfdt: move headers to
<linux/libfdt.h> and <linux/libfdt_env.h>")
Fixes: e236200c7fa6 ("efi_selftest: check installation of the
device tree") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>