[PATCH] watchdog: imx: Support set timeout by wdt command

[sbabic at denx.de]

> After "4b969deac0 watchdog: imx: Add DM support", the imx watchdog
> can be started by wdt command. But the imx watchdog driver only
> support start with the default timeout.
> This commit adds the support for setting the timeout which pass from
> the wdt command into the imx watchdog. If the timeout out of the
> valid range(0.5~128s), start the watchdog with a timeout within the
> valid range and the timeout is the one which closest to the passed
> timeout.
> Signed-off-by: Yuezhang.Mo <yuezhang.mo at sony.com>
> Reviewed-by: Andy.Wu <Andy.Wu at sony.com>
> Reviewed-by: stefano Babic <sbabic at denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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