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

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

Change-Id: I2c4ebabfaa5780078f69295314ae895d72875df9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>