This makes the behavior of IRQ misses for these drivers behave the same as the wcte12xp, wctdm24xxp, and wct4xxp drivers. Previously irqmisses would never increase. The presence of underruns would still show up in dmesg as latency bumps. Signed-off-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>