[PATCH v2 3/3] irqchip/mbigen: Fix the clear register offset

From: MaJun Don't minus reserved interrupts (64) when get the clear register offset, because the clear register space includes the space of these 64 interrupts. This bug wasn't discovered until we running the driver on a new platform with an updated firmware. It turns out

[PATCH v2 3/3] irqchip/mbigen: Fix the clear register offset

From: MaJun Don't minus reserved interrupts (64) when get the clear register offset, because the clear register space includes the space of these 64 interrupts. This bug wasn't discovered until we running the driver on a new platform with an updated firmware. It turns out that there is a