ASoC: SOF: Don't allow pointer operations on unconfigured streams

In the Linux kernel, the following vulnerability has been resolved:

ASoC: SOF: Don't allow pointer operations on unconfigured streams

When reporting the pointer for a compressed stream we report the current

I/O frame position by dividing the position by the number of channels

multiplied by the number of container bytes. These values default to 0 and

are only configured as part of setting the stream parameters so this allows

a divide by zero to be configured. Validate that they are non zero,

returning an error if not