MIPS: add BMIPS Netgear CG3100D board

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/netgear/cg3100d/Kconfig b/board/netgear/cg3100d/Kconfig
new file mode 100644
index 0000000..632c22d
--- /dev/null
+++ b/board/netgear/cg3100d/Kconfig
@@ -0,0 +1,12 @@
+if BOARD_NETGEAR_CG3100D
+
+config SYS_BOARD
+	default "cg3100d"
+
+config SYS_VENDOR
+	default "netgear"
+
+config SYS_CONFIG_NAME
+	default "netgear_cg3100d"
+
+endif