use IAD Descriptor for device descriptor to follow the specification#5495

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cmaglie merged 1 commit intoarduino:masterfrom

cuitoldfish:UseIADDescriptorAsDeviceDescriptor

Mar 16, 2017

Commits on Oct 16, 2016

use IAD Descriptor for device descriptor per the definition in "USB 2.0 ECN Interface Association Descriptor" and "USB Interface Association Descriptor Device Class Code and Use Model"
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