gnu11 is the default now. am: ceb1e694d9 am: c1eba809ea am: a10528746f am: 9ea060eb23

Original change: https://android-review.googlesource.com/c/platform/external/newfs_msdos/+/2097133

Change-Id: I3128eedb9ba29530354d3f8159a06f49ea5c7b84
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>