Merge "libbinder*: clarify setDataPosition constraints" am: f967183ebc am: b7d6548f4c am: c7752dcd0b

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2101835

Change-Id: I801c3877ae5869b3fae06ad86e5d18929116a3b1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>