ALSA: fm801: introduce fm801_ac97_is_ready()/fm801_ac97_is_valid() helpers
ALSA: fm801: introduce fm801_ac97_is_ready()/fm801_ac97_is_valid() helpers

The introduced functios check AC97 if it's ready for communication and
read data is valid.

Signed-off-by: Andy Shevchenko <e11a926d64056a9601d8b64a4b8e158f9732e628@gmail.com>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs