[v2] Fix the message in facility unavailable exception

[Michael Ellerman]

On Wed, 2016-11-30 at 06:45:09 UTC, Balbir Singh wrote:
> I ran into this during some testing on qemu. The current
> facility_strings[] are correct when the trap address is
> 0xf80 (hypervisor facility unavailable). When the trap
> address is 0xf60, IC (Interruption Cause) a.k.a status
> in the code is undefined for values 0 and 1. This patch
> adds a check to prevent printing the wrong information
> and helps better direct debugging effort.
> 
> Signed-off-by: Balbir Singh <bsingharora at gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/93c2ec0f7019a155769d1ecfc08a7d

cheers