msm: ADSPRPC: Add check to avoid out of bound scenario

Add cid check before making PW awake request
to avoid out of bound scenario due to improper
array index.

Change-Id: I91335e17dbc1cb03467d50cc2367cadc9b3bd9c8
Acked-by: Ekansh Gupta <ekangupt@qti.qualcomm.com>
Signed-off-by: Jeya R <jeyr@codeaurora.org>