Fix to return error code -ENOMEM from the kmem_cache_create() error
handling case instead of 0(err is 0 here), as done elsewhere in this
function.

Fixes: 67c2315d ("crypto: caam - add Queue Interface (QI) backend support")
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>