container/std: rename seccomp types

Aliases will be kept until 0.4.

Signed-off-by: Ophestra <cat@gensokyo.uk>

container/netlink.go

@@ -99,7 +99,7 @@ done:
 				}
 				if m.Header.Type == NLMSG_ERROR {
 					if len(m.Data) >= 4 {
-						errno := Errno(-std.ScmpInt(binary.NativeEndian.Uint32(m.Data)))
+						errno := Errno(-std.Int(binary.NativeEndian.Uint32(m.Data)))
 						if errno == 0 {
 							return nil
 						}