Merge "Make libelf visible to libbpf-tools" am: 38fd201227 am: c3ccce0b14 am: d8c00f06ba am: ddc00d49ea

Original change: https://android-review.googlesource.com/c/platform/external/elfutils/+/1965994

Change-Id: I065463db89db6bb7ccce732ef40baa2cbb150da4