[U-Boot] [PATCH] tsec: fix the return value for tsec_eth_init()

[Timur Tabi <timur@freescale.com>]

Andy Fleming wrote:
> You just noted that tsec_eth_init should return the number of tsecs
> initialized successfully.  Therefore, the callers can check that number,
> and respond accordingly.  tsec_initialize() can report the error.  If we
> want more elaborate error handling, we can devise something.  But with
> the new scheme, an error in one tsec (like a riser card not being plugged
> in) will cause all of the tsecs to not be initialized, which seems
> silly.

Ok, so the rule is: a function which initializes one interface can return an
error <0, but a function which initializes multiple interfaces should not.
V2 coming right up.