UPSTREAM: usb: gadget: uvc: Add new enable_interrupt_ep attribute

Add a new attribute to the default control config group that allows
users to specify whether they want to enable the optional interrupt
endpoint for the VideoControl interface.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230130105045.120886-3-dan.scally@ideasonboard.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 342069269
(cherry picked from commit a36afe78
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


master)

Change-Id: I94f4c068690baac46f0c335f63cd457f1e1ef13b
Signed-off-by: Akash Kumar <quic_akakum@quicinc.com>