drv: Removing dubious use of "1" as a pointer in sizeof.
drv: Adding prototype WinCE 5 support to driver.
MOB-8275: Automatically release claimed interfaces on device disconnect

When a device disconnects from the bus, its interfaces are by definition no
longer claimed. Therefore, they can be automatically released safely. Warnings
should not be logged for user programs that didn't release the interface after
the device has disappeared.

This patch ensures all claimed interfaces are automatically released when a
device is disconnected from the bus.