powerpc/rtas: Replace magic values with defines

[Michael Ellerman]

On Wed, 2015-22-07 at 16:56:47 UTC, Thomas Huth wrote:
> rtas.h already has some nice #defines for RTAS return status
> codes - let's use them instead of hard-coded "magic" values!
> 
> Signed-off-by: Thomas Huth <thuth at redhat.com>
> Reviewed-by: Tyrel Datwyler <tyreld at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/9ef03193a93553885b43

cheers