blspec: fix documention of blspec_scan_directory's return code

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of: fdt: Fix fdt size_dt_struct

size_dt_struct was calculated too big, we have to substract ofs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of: fdt: reorder fdt_header initialization

No functional change, just reorder the initialization of
the different offset/size members of fdt_header in increasing
order to make it easier to read.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>