usb: dwc2: delete duplicate word in the comment

Delete the duplicate word "from" in comment.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>
Link: https://lore.kernel.org/r/1616988403-48755-1-git-send-email-tiantao6@hisilicon.com


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