Merge "libc++fs is part of libc++ now." into main am: 1e8f9baa2c am: d53d8c5e0a

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3316474

Change-Id: I2feac54043fa1d409a0111cffd7bc225974f29bd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>