[PATCH 1/2] fsl-layerscape: add dtb overlay feature

[Michael Walle]

> From: Sahil Malhotra <sahil.malhotra at nxp.com>
> 
> This patch enables the DTB overlay feature for LS platforms.

Could you please add some description what this is doing and for what
this is intended? To have a "DTB overlay feature", it is enough to just
enable CONFIG_OF_LIBFDT_OVERLAY.

Apparently you're adding an overlay passed by optee. Doesn't this have to
be applied to u-boot's control dtb too?

-michael