ALSA: hda - Fix pin configuration of HP Pavilion dv7

Fix the quirk entry for HP Pavilion dv7 in order to make the bass
speaker working.

Reported-and-tested-by: Tomas Pospisek <tpo2@sourcepole.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>