msm: ADSPRPC: Enable Sensors PDR support

Register for ADSP Sensors PDR notifications and handle Sensors PDR
by notifying all the Sensor static PD clients.

Change-Id: I17859f6b5c9ec8ae6a325172ddfab9860bf896f5
Acked-by: Himateja Reddy <hmreddy@qti.qualcomm.com>
Signed-off-by: Tharun Kumar Merugu <mtharu@codeaurora.org>