The irq signal numbers that are send by the cpu are increased by 2 from
the number programmed into the mips core by bcma.
Return the irq number on which the irqs are send in bcma_core_irq() now.
Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34669 3c298f89-4303-0410-b956-a3cf2f4a3e73
