treewide: remove references to CREDITS ...

The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

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

ARM: i.MX: bbu: Fix lseek error check in imx_bbu_external_nand_update() ...

Don't use 'int' to store lseek()'s return value to avoid problems with
large seek offsets. While at it, make sure to populate return error
code from 'errno'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: bbu: Fix variable type in imx_bbu_external_nand_update() ...

MEMGETBADBLOCK returns loff_t, so that's the type we should use to
store its result.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: bbu: Constify all 'devicefile' arguments ...

Constify all 'devicefile' arguments since they are treated as so by
all of the users in BBU code.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

sizes.h: move include/sizes.h to include/linux/sizes.h ...

This file originates in Linux.  Linux has it under include/linux/
directory since commit dccd2304cc90.
Let's move it to the same place as well in barebox.

This commit was generated by the following commands:

  find -name '*.[chS]' | xargs sed -i -e 's:<sizes.h>:<linux/sizes.h>:'
  git mv include/sizes.h include/linux/

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: bbu external nand: Fix uninitialized variable ...

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

ARM: i.MX: Add bbu handler for external NAND boot ...

The external NAND boot code currently does not handle bad blocks
correctly on 2k NAND flashes. This patch adds a barebox_update
handler for external NAND boot which embeds a Bad block table in
the flashed image. The boot code will skip bad blocks found in
this bad block table then.

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