UPSTREAM: ABI: configfs-usb-gadget-uac1: fix a broken table

Changeset 0356e628 ("usb: gadget: f_uac1: add volume and mute support")
added some new elements to the table but didn't care enough to actually
adjust the columns, causing the output to be broken as warned by
Sphinx when producing the documentation.

Readjust it for it to be a valid ReST table.

Fixes: 0356e628 ("usb: gadget: f_uac1: add volume and mute support")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/044b0c14c35922bdcca50551fe2aa870baae9b06.1632740376.git.mchehab+huawei@kernel.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 235196743
(cherry picked from commit 1b8af67c)
Change-Id: I55cbfab7a954b0bd4b256dd43fe6f7e40c5201e3
Signed-off-by: Luiz Matheus <luizmmat@motorola.com>