crypto: virtio - Replace package id with numa node id

crypto: virtio - Replace package id with numa node id

With multiple virtio crypto devices supported with different NUMA
nodes, when crypto session is created, it will search virtio crypto
device with the same numa node of current CPU.

Here API topology_physical_package_id() is replaced with cpu_to_node()
since package id is physical concept, and one package id have multiple
memory numa id.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>