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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8226a62f44d3ae8f3d466e545bc512fd1b10af62