[U-Boot] [PATCH v2] dfu: make data buffer size configurable

[Marek Vasut]

Dear Heiko Schocher,

> Dfu transfer uses a buffer before writing data to the
> raw storage device. Make the size (in bytes) of this buffer
> configurable through environment variable "dfu_bufsiz".
> Defaut value is configurable through CONFIG_SYS_DFU_DATA_BUF_SIZE
> 
> Signed-off-by: Heiko Schocher <hs at denx.de>
> Cc: Pantelis Antoniou <panto at antoniou-consulting.com>
> Cc: Tom Rini <trini at ti.com>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Kyungmin Park <kyungmin.park at samsung.com>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Wolfgang Denk <wd at denx.de>

Applied, thanks!

Best regards,
Marek Vasut