Minor fixes

Author: theotherjimmy

features/nanostack/mbed_lib.json

@@ -1,3 +1,3 @@
 {
-    "name": "nanostack"
+    "name": "nanostack-upper"
 }

tools/resources/__init__.py

@@ -263,9 +263,9 @@ def get_file_refs(self, file_type):
         if self._libs_filtered is None:
             return list(self._file_refs[file_type])
         else:
-	    to_ret = []
-	    for ref in self._file_refs[file_type]:
-    	    	_, path = ref
+            to_ret = []
+            for ref in self._file_refs[file_type]:
+                _, path = ref
                 if not any(
                    path.startswith(dirname(e.path)) for e in self._excluded_libs
                 ):