Merge changes Icca32d7d,I4e2350e4,I36537a8b,I8d6cc398,Ic9ed6318

* changes:
  ANDROID: e2fsck: Handle casefolded encryption
  ANDROID: mke2fs: Support encrypt+casefold
  ANDROID: tune2fs: Support encrypt+casefold
  ANDROID: e2fsck: Do not mutate encrypted names
  ANDROID: tune2fs: Allow setting the casefold feature