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

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

Change-Id: I3251ad230bc815e77570d14ef71e077961a8d441
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>