[U-Boot] [imx/next] tools: imx8m_image: use bash

[Peng Fan]

> -----Original Message-----
> From: Fabio Estevam [mailto:festevam at gmail.com]
> Sent: 2018年12月12日 9:48
> To: Peng Fan <peng.fan at nxp.com>
> Cc: Stefano Babic <sbabic at denx.de>; U-Boot-Denx <u-boot at lists.denx.de>
> Subject: Re: [U-Boot] [imx/next] tools: imx8m_image: use bash
> 
> Hi Peng,
> 
> On Tue, Dec 11, 2018 at 11:46 PM Peng Fan <peng.fan at nxp.com> wrote:
> >
> > Use bash instead of sh
> 
> Please explain the reason in the commit log.

ok, I'll add that in v2.

Thanks,
Peng.