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

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

Change-Id: I4714a78a02e7440e6285dbf533bd37d6dee17d96