There is a chance of send a request to QSEE to load an app that is already previously loaded. Requesting QSEE to load an app that is already loaded will result in a failure. Issuing a request to QSEE to check if app already exists before issuing a request to load it, all within the same app_access_lock mutex, fixes this issue. CRs-Fixed: 420473 Change-Id: I5dfb02c7b0f0144d142fc70084ec1e096ada0439 Signed-off-by: Mona Hossain <mhossain@codeaurora.org>