Downcasting a void * to struct aesni_gcm_session * caused the session
data to be treated as tainted.
Removing the void * temporary variable and adding a cast avoids this
issue.
Coverity issue: 374377
Fixes: 746825e5c0ea ("crypto/ipsec_mb: move aesni_gcm PMD")
Cc: piotrx.bronowski@intel.com
Cc: stable@dpdk.org
Signed-off-by: Ciara Power <redacted>