[automerger skipped] Migrate to use process_madvise syscall instead of procfs...

[automerger skipped] Migrate to use process_madvise syscall instead of procfs interface for memory compaction am: c51efbe6 am: f65428ca -s ours

am skip reason: Merged-In I9d9d895aee7fbc46a2f12f6ca080ab8457ea7222 with SHA-1 555af828 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1730078

Change-Id: I8d71d5540d4e7fd8812c8139b8e99b2351b04074