gnu11 is the default now. am: ceb1e694d9 am: c1eba809ea am: a10528746f am: 9ea060eb23 am: 363277551e

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

Change-Id: I3f85893fcc44c89a6b715db1a4b1ecf58746e3ff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>