arm/dt: msm8226: Add async irq for USB

Async irq is required to wakeup MSM from suspend on
connecting USB Cable. Hence add async irq value of
USB.

Change-Id: I1fb9ae7b42fd9c6ccf8fbd0fe47724bc6800665c
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
1 file changed