Merge "Remove GTEST_SKIP()s for memfd_create()." into main am: 9b952cf5c8

Original change: https://android-review.googlesource.com/c/platform/bionic/+/3528734

Change-Id: I8220a8f334b882f45d041ace12e5ff154d285a5a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>