Upgrade cmake to 3.16 for Windows

Built at http://fusion-qa/45ddb4ea-eb41-419a-915f-26986114d64c

One difference here is that ninja and android.toolchain.cmake are not
included.

Users should sync from prebuilts/ninja or external/android-cmake
directly.

Bug: 149782024
Change-Id: Iba02ef905d29ed1b829e097569b94cae7ca64431