powerpc/slb: Use a local to avoid multiple calls to get_slb_shadow()

[Michael Ellerman]

On Thu, 2015-13-08 at 07:11:18 UTC, Michael Ellerman wrote:
> For no reason other than it looks ugly.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/26cd835ef8bdc9ca6db03374

cheers