As per msm8953 design, APM state machine could take more than 200us for mode switching. Increase SW timeout constraint value to 500us. Also, update the mask used to check APM switch status. CRs-Fixed: 992695 Change-Id: Ie0f8733fb5b39172fb14547292cbd05689a50230 Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>