Support max codecs to 8 for nvidia hda controller.
Change AZX_MAX_CODECS to 8, and add
"#define AZX_DEFAULT_CODECS 4" for default driver.
Set azx_max_codecs to 8 for nvidia controller.
Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>