misc:cryptodev: Fix USE_AFTER_FREE coverity errors

misc:cryptodev: Fix USE_AFTER_FREE coverity errors

Fix coverity errors due to dereferencing freed
pointer ctx
Coverity id : 30088

Bug 1416640

Change-Id: I20ebb3d05ced4b7b5d1ce31315a4570e619e80fa
Signed-off-by: Shravani Dingari <shravanid@nvidia.com>
Reviewed-on: http://git-master/r/743598
(cherry picked from commit a8374cd7694fe8bc6a4bda53f27087e8ffb54d95)
Reviewed-on: http://git-master/r/767032
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-on: http://git-master/r/1129661
Tested-by: Venkata Jagadish <vjagadish@nvidia.com>
Reviewed-by: Mallikarjun Kasoju <mkasoju@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>