[ALSA] hda-codec - More fixes for Conexant HD Audio support

Renamed Conexant 5045 to CX20549 (Venice) per Conexant Documentation
Renamed Conexant 5047 to CX20551 (Waikiki) per Conexant Documentation
Fixed automute on HP Laptops with CX20551 codec.
Fixed recording issues on Toshiba Satelite P100/P105 series laptops
Added HP DV8000, DV2000Z, Fujitsu Si1520 support
More work to be done on CX20549 based systems, but CX20551 Systems are
much better now.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>