msm: adsprpc: Print and return appropriate error codes

Log, catch errors, print and return appropriate error codes
wherever necessary.

Change-Id: Id2336fd128a089ab88a94f5370ab70611305c9c8
Acked-by: Deepika Singh <dsi@qti.qualcomm.com>
Signed-off-by: Mohammed Nayeem Ur Rahman <mohara@codeaurora.org>