From: "Dr. David Alan Gilbert" <linux@xxxxxxxxxxx>
Replace brcmstb_l2_mask_and_ack() by the generic
irq_gc_mask_disable_and_ack_set().
brcmstb_l2_mask_and_ack() was added by
commit 49aa6ef0b439 ("irqchip/brcmstb-l2: Remove some processing from the
handler") in September 2017 with a comment saying it was actually
generic and someone should add it to the generic code.
commit 20608924cc2e ("genirq: generic chip: Add
irq_gc_mask_disable_and_ack_set()") did that a few weeks later,
however no one went back and took the original out.
Build tested only.
Signed-off-by: Dr. David Alan Gilbert <linux@xxxxxxxxxxx>