Android U Beta 1 GPL
Fix the missing std am: b858732354

Original change: https://android-review.googlesource.com/c/platform/system/libhwbinder/+/2467700

Change-Id: I4f535aacb7d13b65516f538a6f8c5ed2368c8dbb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>