update buildroot to 2017.02.11

bsp/buildroot-2017.02.11/board/wandboard/genimage.cfg

@@ -0,0 +1,32 @@
+# Minimal SD card image for the Wandboard
+#
+# The SD card must have at least 1 MB free at the beginning.
+# U-Boot and its environment are dumped as is.
+# A single root filesystem partition is required (Ext4 in this case).
+#
+# For details about the layout, see:
+# http://wiki.wandboard.org/index.php/Boot-process
+
+image sdcard.img {
+  hdimage {
+  }
+
+  partition spl {
+    in-partition-table = "no"
+    image = "SPL"
+    offset = 1024
+  }
+
+  partition u-boot {
+    in-partition-table = "no"
+    image = "u-boot.img"
+    offset = 70656
+  }
+
+  partition rootfs {
+    partition-type = 0x83
+    image = "rootfs.ext4"
+    offset = 1M
+    size = 512M
+  }
+}