powerpc/icp-opal: Fix missing KVM case and harden replay

[Michael Ellerman]

On Mon, 2017-01-16 at 17:58:53 UTC, Benjamin Herrenschmidt wrote:
> The icp-opal call is missing the code from icp-native to recover
> interrupts snatched by KVM. Without that, when running KVM, we can
> get into a situation where an interrupt is lost and the CPU stuck
> with an elevated CPPR.
> 
> Also harden replay by always checking the return from opal_int_eoi
> 
> Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/9728a7c8ab2f7a1c8d5c95278d2e4f

cheers