[PATCH] ARM: i.MX8M: atf: add debug messages just before TF-A jump

[Marco Felsch]

On 26-01-16, Ahmad Fatoum wrote:
> The handoff to TF-A has been a frequent source of hangs during board
> bringup in the past for various reasons.
> Add a debug print just before branching to TF-A and add a comment
> explaining some possible issues to aid with future debugging.
> 
> Cc: Holger Assmann <h.assmann at pengutronix.de>
> Cc: Fabian Pflug <f.pflug at pengutronix.de>
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>

Reviewed-by: Marco Felsch <m.felsch at pengutronix.de>