According to spec IRQ1 isn't available for PIRQ assignment.
Has gone unnoticed probably because modern OS use MSI or
at least APIC and even with noapic don't use IRQ1 with PCI
IRQs.
Change-Id: Idc7db249007df629b27e8cae41cc80358d5306f6
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7478
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
609d22ff1b