Move the prebuilt NDKs to their own git project in prebuilts/ndk/.

Change-Id: I74e74d909cee149ddc2fd0407fb2fdb0f807a755
17285 files changed
tree: bc8a9bd38b24a3d70081d56bdfe0e18d4fb34998
  1. android-ndk-r4/
  2. android-ndk-r5/
  3. android-ndk-r6/
  4. Android.mk