This renames the dcdofs config option in the imx-image tool to ivtofs.  dcdofs
is a misnomer. The DCD (Device Configuration Data) is only one part of the data
linked into the IVT (Image Vector Table), but the meaning of the option is
really the latter, not the former.

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

we need to disable second SD chip select properly else the SDRAM size
detection will detect it but there is no memory connected so the boot
will fail

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Florian Vallee <fvallee@eukrea.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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