asoc: csra66x0: Add support for 16ch audio playback

To support 16 channel audio playback 8 codecs are needed.
Update cluster device table to support this number of
codecs.

Change-Id: I1ab3283b3174357b8b6647662c4519e5dca4bb97
Signed-off-by: Dieter Luecking <dieterl@codeaurora.org>