vsock/test: print type for SOCK_SEQPACKET

SOCK_SEQPACKET is supported for virtio transport, so do not interpret
such type of socket as unknown.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20240124193255.3417803-1-avkrasnov@salutedevices.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/vsock/vsock_diag_test.c

@@ -39,6 +39,8 @@ static const char *sock_type_str(int type)
 		return "DGRAM";
 	case SOCK_STREAM:
 		return "STREAM";
+	case SOCK_SEQPACKET:
+		return "SEQPACKET";
 	default:
 		return "INVALID TYPE";
 	}