ALSA: hda - Add alc_codec_rename() helper

Added alc_codec_rename() helper for renaming codec->chip_name.
Added Acer-specific codec naming for ALC269/662.

[Clean-up and refactoring by tiwai]

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>