asoc: codecs: bolero: Reset power mode register at teardown

Reset the compander power mode register to default
value upon teardown sequence, so that at next startup
use case it has proper power value.

Change-Id: I851e8a62a910d7018ac74e93abee47a615b3e50c
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>