The default interrupt moderation on XUSB controller was causing 4.62ms latency, hurting performance tremendously, especially in smaller usb packets (which are the norm).
This change brings it to parity with USB2 controller.
- Rework all timeouts to be more relaxed when doing big data transfers.
- Fix a bug where async transfer would timeout sooner instead of infinite tries.
Both showed up in Arch Linux, because of it's huge latency USB stack latency that can reach 1-2s.
The rework will let every OS work without adding additional wait time in the gadget loops.
