bpf_map_def.h - fix no longer correct comment am: fd59a4a0a6 am: 9123fe9e56

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/1619222

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ibd6609deeb272056d82d964d8d9e50c05496ab07