Update OpenOCD to the latest v0.11

Author: valeros

platform.json

@@ -422,7 +422,7 @@
       "type": "uploader",
       "optional": true,
       "owner": "platformio",
-      "version": "~2.1000.0"
+      "version": "~2.1100.0"
     },
     "tool-jlink": {
       "type": "uploader",