[PATCH] imx9: container.cfg: Guard tee.bin inclusion

[Peng Fan]

> Subject: [PATCH] imx9: container.cfg: Guard tee.bin inclusion
> 
> From: Fabio Estevam <festevam at denx.de>
> 
> Guard the inclusion of tee.bin with the CONFIG_OPTEE symbol to fix
> the following build warning:
> 
>   CHECK    u-boot-container.cfgout
> WARNING './tee.bin' not found, resulting binary may be not-functional
>   BINMAN  .binman_stamp
>   OFCHK   .config
> 
> Signed-off-by: Fabio Estevam <festevam at denx.de>

Reviewed-by: Peng Fan <peng.fan at nxp.com>