Merge "Make usage of revocable fds for reads configurable." into rvc-dev am: 14849cfbd4 am: 081246dcae am: 3bdb03ba15

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11921569

Change-Id: I4298738d343e4148a49066e08c146f60be096ffd