Update the bug that's blocking libc++fs for vendor code. am: bb48d640b3 am: 218012a3aa am: d52c2703e3 am: 44d6bbf72f am: b17aa7b876

Original change: https://android-review.googlesource.com/c/platform/external/libcxx/+/1792712

Change-Id: Ifd2c302fb212237b0666dbf1ef428499699b82b2