Mark libelf static lib as vendor_available

This commit adds `vendor_available: true` to libelf static lib so that
some vendors can use libelf static lib in their tools.

Bug: 74094531
Test: aosp_walleye-userdebug builds

Merged-In: I4a4ab3de49da0769ae2749f63432fa16e8a774ab
Change-Id: I4a4ab3de49da0769ae2749f63432fa16e8a774ab
2 files changed