Add fix_blobs script to help construct the USB directory.

Change-Id: Ic215ea5ecf427afa6f8aa966524be9ce4438a4f0
diff --git a/fix_blobs.py b/fix_blobs.py
new file mode 100644
index 0000000..7ca3580
--- /dev/null
+++ b/fix_blobs.py
@@ -0,0 +1,23 @@
+# Lint as: python3
+
+import os
+import sys
+
+os.chdir(sys.argv[1])
+with os.scandir('.') as it:
+  for entry in it:
+    if not entry.is_file() or entry.name.startswith('.'):
+      continue
+
+    name = entry.name
+    prefix = name[:2]
+    name = name[2:]
+
+    try:
+      os.mkdir(prefix)
+    except Exception:
+      pass
+
+    print(f'{entry.name} => {prefix}/{name}')
+    os.rename(entry.name, f'{prefix}/{name}')
+