[ALSA] cmipci: add 96 kHz support

Add support for 88.2 kHz and 96 kHz analog and digital playback on
CMI8768/CMI8770 chips.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>