ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine

ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine

BugLink: https://bugs.launchpad.net/bugs/1836755
Without this patch, the headset-mic and headphone-mic don't work.

Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
(cherry picked from commit 4b4e0e32e4b09274dbc9d173016c1a026f44608c
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git)
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Acked-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>