[FEATURE] test all possible number of channels #1001

Currently all of topologies for the devices in SOF CI are either ch_min=2;ch_max=2 or ch_min=4;ch_max=4.
We will need to support multi channel audio up to 8 channels,

We will see the pipelines for 7.1 multi channel or 5.1 multi channel.

• 7.1 multi channel : ch_min=2;ch_max=8
• 5.1 multi channel : ch_min=2;ch_max=6

Then we need to try all supported channels from min to max.

TODO: Need to clarify the requirement. When a pipeline supports 8 channels, ch_min=2;ch_max=8,

• should we try any integer number between min and max? i.e 2,3,4,5,6,7,8
• or known/popular channel numbers? i.e 2,6,8
• or only with even numbers between min and max? i.e 2,4,6,8