mfd: pm8921: Use IRQCHIP_SKIP_SET_WAKE
mfd: pm8921: Use IRQCHIP_SKIP_SET_WAKE

We don't need to implement a dummy irq_set_wake op if we just set
IRQCHIP_SKIP_SET_WAKE.

Suggested-by: Josh Cartwright <8ab3595d4bac68c19ea44f183d51b50908f1de91@codeaurora.org>
Signed-off-by: Stephen Boyd <010521127f513270fe503d86ab8316ac5147f4b7@codeaurora.org>
Signed-off-by: Lee Jones <630e34333487a351a857f6b705e04d30b37c1629@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs