Merge "libbinder_ndk: add Trusty build file" am: 50da0077f2

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2237165

Change-Id: I903dcbb6e602b9549dad0a556c674a90e103421d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>