[ALSA] ali5451: Add PCI_DEVICE and #defines in snd_ali_ids

Modules: ALI5451 driver

This patch uses #defines for the Vendor ID and Device ID and uses the
new PCI_DEVICE macro.

Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>