ALSA: hda - Add quirk for HP EliteBook 840 G5

This enables mute LED support and fixes switching jacks when the laptop
is docked.

Signed-off-by: Jurica Vukadin <jurica.vukadin@rt-rk.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>