Upgrade libcap to libcap-2.47 am: 47fac93ec3 am: c98ec7111e am: 3c29b865cc

Original change: https://android-review.googlesource.com/c/platform/external/libcap/+/1559975

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I81ae8a6e9f28965e5f49e42f5ddd4b495c6acff5