Merge "Mark the return of munmap() as unused." into main am: 7153373983

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3244900

Change-Id: I7f6e76a0537355440cfbd7d71b0bf378d2d38dcb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>