UPSTREAM: HID: playstation: add microphone mute support for DualSense.

The DualSense controller has a built-in microphone exposed as an
audio device over USB (or HID using Bluetooth). A dedicated
button on the controller handles mute, but software has to configure
the device to mute the audio stream.

This patch captures the mute button and schedules an output report
to mute/unmute the audio stream as well as toggle the mute LED.

Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Reviewed-by: Barnabás Pőcze <pobrn@protonmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Bug: 167947264
Change-Id: I6fce08b0b28c1cf41c682a2ff5655f00d7a52843
(cherry picked from commit c26e48b150fccb07c4b7f0f419f2b0a2c42e57d2)
Signed-off-by: Farid Chahla <farid.chahla@sony.com>