Add missing std header am: 707a554cef

Original change: https://android-review.googlesource.com/c/platform/system/libhwbinder/+/2750105

Change-Id: Ia256062467812e97fa8b5058a50f5952a59ccc9a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>