[PATCH v3] usb: gadget: f_uac2: fix superspeed transfer

[Jing Leng]

Hi Greg KH,

1. Old version kernel can support superspeed transfer, the problem
was introduced by the following modification:
 commit eaf6cbe0992052a46d93047dc122fad5126aa3bd
 Author: Ruslan Bilovol <ruslan.bilovol@xxxxxxxxx>
 Date:   Mon Jul 12 14:55:28 2021 +0200
 
     usb: gadget: f_uac2: add volume and mute support

2. Only ss_ep_int_desc endpoint doesn't have 'SuperSpeed Endpoint
Companion Descriptor' followed (All other endpoints have it).

So it is a bugfix rather than a feature.

Thanks,
Jing Leng