platform/chrome: typec: Fix ret value check error

cros_typec_add_partner() returns 0 on success, so check for "ret"
instead of "!ret" as an error.
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Fixes: 9d33ea33 ("platform/chrome: cros_ec_typec: Register port partner")
Signed-off-by: Benson Leung <bleung@chromium.org>

drivers/platform/chrome/cros_ec_typec.c

@@ -263,7 +263,7 @@ static void cros_typec_set_port_params_v1(struct cros_typec_data *typec,
 
 		pd_en = resp->enabled & PD_CTRL_RESP_ENABLED_PD_CAPABLE;
 		ret = cros_typec_add_partner(typec, port_num, pd_en);
-		if (!ret)
+		if (ret)
 			dev_warn(typec->dev,
 				 "Failed to register partner on port: %d\n",
 				 port_num);