powerpc/mpic: Cleanup irq vector accounting

[Michael Ellerman]

On Fri, 2018-06-29 at 10:24:32 UTC, Bharat Bhushan wrote:
> Available vector space accounts ipis and timer interrupts
> while spurious vector was not accounted. Also later
> mpic_setup_error_int() escape one more vector, seemingly it
> assumes one spurious vector.
> 
> Signed-off-by: Bharat Bhushan <Bharat.Bhushan at nxp.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/fca7bf946e31688edce446fdaa571c

cheers