[dts] [PATCH V1] framework/main: fix warning of syntax

[Tu, Lijuan]

> Subject: [dts] [PATCH V1] framework/main: fix warning of syntax
> 
> when use python3.8, it will warning of cmd 'ret is not 0', fix this warning.
> 
> Signed-off-by: LihongX Ma <lihongx.ma at intel.com>
> ---
>  framework/main.py | 4 ++--

Applied