Dell Vostro 5480 (1028:069a) needs the very same quirk used for Vostro
5470 model to make bass speakers properly working.
Reported-and-tested-by: Paulo Roberto de Oliveira Castro <p.oliveira.castro@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>