[ARM] 4840/1: pxa: fix the typo in get_irqnr_and_base

This typo causes the incorrect calculation of the IRQ numbers
in the ICIP2 registers.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 file changed