complete starpu_conf_noworker for fpga

src/core/workers.c

@@ -1197,6 +1197,7 @@ int starpu_conf_noworker(struct starpu_conf *conf)
 	conf->ncpus = 0;
 	conf->ncuda = 0;
 	conf->nopencl = 0;
+	conf->nfpga = 0;
 	conf->nmic = 0;
 	conf->nmpi_ms = 0;
 }