Merge "Add API to query mmap policy information." am: c3a910776f am: d47937671a am: e2b8299fc9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2388416

Change-Id: I01539f76d43c02fffbdaa74494274256faa2977e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>