ASoC: msmcobalt: Add support for TDM

Add support for audio over TDM in msmcobalt.
Time-division multiplexing (TDM) is a method of
transmitting data in the time domain. This can
be used to support data rates that exceed that of
the transmitted signal or to have up to 8 channel
support on a bus that normally supports less in
the frequency domain.

CRs-fixed: 1070768
Change-Id: I20998435591c44d2ca1a7b6bd5eacac2af0611f6
Signed-off-by: Josh Kirsch <jkirsch@codeaurora.org>