powerpc/ps3: Fix system hang with GCC 5 builds

[Michael Ellerman]

On Tue, 2016-11-29 at 18:47:32 UTC, Geoff Levand wrote:
> GCC 5 generates different code for this bootwrapper null check
> that causes the PS3 to hang very early in its bootup.  This
> check is of limited value, so just get rid of it.
> 
> Signed-off-by: Geoff Levand <geoff at infradead.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/6dff5b67054e17c91bd630bcdda17c

cheers