libubus: reset ctx->sock.error when doing ubus reconnect

When ubus connect fails ctx->sock.eof will be set but ctx->sock.error
can be set as well. Reset ctx->sock.error as well when doing ubus
reconnect

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

libubus-io.c

@@ -375,6 +375,7 @@ int ubus_reconnect(struct ubus_context *ctx, const char *path)
 	}
 
 	ctx->sock.eof = false;
+	ctx->sock.error = false;
 	ctx->sock.fd = usock(USOCK_UNIX, path, NULL);
 	if (ctx->sock.fd < 0)
 		return UBUS_STATUS_CONNECTION_FAILED;