[PATCH] arm: fsl: imx8mn_bsh_smm_s2: Migrate to OF_UPSTREAM

[Peng Fan]

> Subject: [PATCH] arm: fsl: imx8mn_bsh_smm_s2: Migrate to OF_UPSTREAM
> 
> Migrate imx8mn_bsh_smm_s2 and imx8mn_bsh_smm_s2pro boards to
> OF_UPSTREAM.
> 
> Signed-off-by: Patrick Barsanti <patrick.barsanti at amarulasolutions.com>
> Tested-by: Michael Trimarchi <michael at amarulasolutions.com>

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