Update stubs for libnativehelper am: 5ab419c99c am: 9e494e1a6c am: 470871cdfd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/libs/native_bridge_support/+/14663290

Change-Id: I9768479b54e99c00b1143c5691b4fc2d5cfb338e