Doesn't work yet, on Windows, because Windows will make a special
control request if it sees this.
On Linux lsusb shows it like this:
```
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 0x0048
bNumDeviceCaps 2
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000000
(Missing must-be-set LPM bit!)
Platform Device Capability:
bLength 28
bDescriptorType 16
bDevCapabilityType 5
bReserved 0
PlatformCapabilityUUID {d8dd60df-4589-4cc7-9cd2-659d9e648a9f}
CapabilityData[0] 0x00
CapabilityData[1] 0x00
CapabilityData[2] 0x03
CapabilityData[3] 0x06
CapabilityData[4] 0x48
CapabilityData[5] 0x00
CapabilityData[6] 0x01
CapabilityData[7] 0x00
```
Signed-off-by: Daniel Schaefer <dhs@frame.work>
8fa6c6a564