Assemble: free resources in load_devices

Like other failure cases in load_devices, we need
to free those resources as well.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

Assemble.c

@@ -594,6 +594,9 @@ static int load_devices(struct devs *devices, char *devmap,
 			if (strcmp(c->update, "ppl") == 0 &&
 			    ident->bitmap_fd >= 0) {
 				pr_err("PPL is not compatible with bitmap\n");
+				close(mdfd);
+				free(devices);
+				free(devmap);
 				return -1;
 			}