usb: dwc3: omap: enable irqs lately
usb: dwc3: omap: enable irqs lately

If we enable IRQs before requesting our
extcon device, we might fall into a situation
where and IRQ fires before we're ready to
handle it.

Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

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