libbinder: check null bytes in readString*Inplace am: 58f5cfa56d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/13144867

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I38ad7b4e9721041dd2dd8f791030bfc0d40b8670