Update mainline prebuilts to build 8376291.

Taken from branch aosp-master.

CL prepared by prebuilts/runtime/mainline/update.py. See
prebuilts/runtime/mainline/README.md for update instructions.

This update is limited:

- runtime/sdk is updated to incorporate new headers. This brings the
  SDK in sync after the userfaultfd.h header update in
  https://r.android.com/2025844.

- libbinder_ndk in platform/sdk is updated to incorporate new headers
  necessary for the current AIDL compiler.

ART will still default to API level 31 of the ABIs through header
annotations.

Test: banchan com.android.art && m
Test: art/build/apex/runtests.sh
Bug: 216762037
Bug: 211018812
Change-Id: I62f541ffbb840d34b415e05e182953239f78d1d7
1158 files changed