Do not diff .odex files

They still are not deterministic -- only the boot images were made
deterministic (.oat/.art).

Bug: 26956807
Change-Id: I2e00bb6662b4c8d184c48ef9aa34b39142c94893

tools/releasetools/target_files_diff.py

@@ -51,6 +51,10 @@ def ignore(name):
               'RECOVERY/RAMDISK/selinux_version']:
     return True
 
+  # b/26956807 .odex files are not deterministic
+  if name.endswith('.odex'):
+    return True
+
   return False