- correct the names of buffers used by message queues so that it
is possible to have multiple instances of the driver (in case
such need appears in the future)
- make `stop` and `discard_rx` normal structure members, not bit
fields, as they are modified in the interrupt handler and that
could lead to overwriting of other bit fields located in the
same memory unit
- add a log message providing the actual frame clock (WS) frequency
(i.e. PCM rate) that the driver was able to configure (due to
hardware limitations, it is not always possible to achieve the
exact requested frequency and the driver selects the closest one
available, so make it more visible to users
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
5473b22275