irqchip: omap-intc: correct maximum number or MIR registers

maximum number of MIR register is 4, rather than 3.
Fix that.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Felipe Balbi 2014-09-15 16:15:08 -05:00 • committed by Tony Lindgren
commit 74b6c8ef54