asoc: swr-haptics: close SWR data channel after stoping playing

Per HW recommendation, when stopping SWR playing, SWR_PLAY register need
to get deasserted before disconnecting SWR data channel. Hence adjust the
sequence.

Change-Id: I15f33fefc8b847c9a7f6abd627217f21f8ddee89
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>