asoc: codecs: bolero: suspend swr at VA use case switch

While switching from a VA use case, suspend the soundwire
immediately so that if the next use case switches clock
soundwire will also be reset.

Change-Id: I18b65a01bc02329e9a53de93c0ccfb621c95a1f4
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>