Merge "Revert "Revert "Switch NDK libc++ from prebuilts/ndk to prebuilt...""...

Merge "Revert "Revert "Switch NDK libc++ from prebuilts/ndk to prebuilt..."" into main am: 7428bc43

Original change: https://android-review.googlesource.com/c/platform/build/+/3198752



Change-Id: Ic9d5288cc43a10300fdcd23fe112530a03ad97ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>