nfs4trace: fix state manager flag printing

__print_flags wants a mask, not the enum value.  Add two more flags.

Fixes: 511ba52e ("NFS4: Trace state recovery operation")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>