ALSA: hda/realtek - Add quirk entry for HP Pavilion 15

HP Pavilion 15 (103c:820d) with ALC295 codec requires the quirk for
the mute LED control over mic3 pin.  Added the corresponding quirk
entry.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201653
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>