Allow usbd to handle event notificatiosn where mor ethan one device is involved, (e.g. plugin a hub with multiple devices already attached to it)
Allow usbd to handle event notificatiosn where mor ethan one
device is involved, (e.g. plugin a hub with multiple devices
already attached to it)

Submitted by: Naoyuki Tai <ntai@smartfruit.com>
PR: 43993
MFC in:	1 week

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