msm: camera: icp: Read the entire msg queue for a given interrupt

It is possible that the FW might post multiple messages for a given
interrupt. While parsing the messages if FW has posted an error, we
still need to read the other messages in the queue and not skip them.

Change-Id: I46898271662af3151cb9b84c69f13d166ae57bb6
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>