am 16c0a0f6: am edc2aac7: cherry pick Change-Id: I30e939d1dd5603a05070486c8a43187bedef52a4 Doc change: Updating ndk/sdk/tools overview pages for hc preview

* commit '16c0a0f638b845ce4f24b6124154a00707676819':
  cherry pick Change-Id: I30e939d1dd5603a05070486c8a43187bedef52a4 Doc change: Updating ndk/sdk/tools overview pages for hc preview