Merge "Copy HexString to libbinder" into main am: 80fff99925 am: d6ffcf212e am: 28db0b66f3

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2784069

Change-Id: If46dd4dd013638a21de209673554337d429eb1c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>