ASoC: msmcobalt: Add CPE ECPP DAI instance for ECPP path

Add support for CPE(Codec Processing Engine) second voice
wakeup session using ECPP(Echo cancellation Ping-Pong) hardware
path. This allows to enable two concurrent CPE sessions, one
on MAD(Mic Always-on Detection) and the other on ECPP.

Change-Id: I280057b17188757f586562f45f32ecf28595e045
Signed-off-by: Shiv Maliyappanahalli <smaliyap@codeaurora.org>