Use the correct USB interface macros instead of USB_IF_CSI.
Use the correct USB interface macros instead of USB_IF_CSI.

As pointed out by hselasky@, USB_IF_CSI is the wrong macro here since we want
to declare the device's interface class, subclass and protocol, not class,
subclass and driver info.

Follow-up to r244704.

PR:		kern/174707
Approved by:	glebius
MFC after:	1 week

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