powerpc/xmon: Show the stack protector canary in xmon

[Michael Ellerman]

On Mon, 2018-10-15 at 02:23:39 UTC, Michael Ellerman wrote:
> This is helpful for debugging stack protector crashes.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/50530f5eac0c023cfc313d7ed342d4

cheers