mips: bmips: add NeufBox 4 (Sercomm) board

This serves as an example for bcm6358-leds.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/sfr_nb4_ser.h b/include/configs/sfr_nb4_ser.h
new file mode 100644
index 0000000..ab64518
--- /dev/null
+++ b/include/configs/sfr_nb4_ser.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <configs/bmips_common.h>
+#include <configs/bmips_bcm6358.h>
+
+#define CONFIG_REMAKE_ELF
+
+#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_ENV_SIZE			(8 * 1024)
+
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+
+#define CONFIG_SYS_FLASH_CFI		1
+#define CONFIG_FLASH_CFI_DRIVER		1