[ALSA] hda-codec - Some fixes for Realtek codec supports

- Added BenQ T31-16 AMD Turion64x2 (ALC262) support
- Added models for ASUS machines with ALC861

Signed-off-by: Kailang Yang <kailang@realtek.com.tw>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>