Merge "Don't use BLKBSZSET on Linux." am: 786cb31536 am: 6de5d764fb am: 6b454d7d70

Original change: https://android-review.googlesource.com/c/platform/external/newfs_msdos/+/1560734

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I6907274300a8add555f51b46d1f6846130b8890e