xfs: fix overly long line in the file_operations

Re-wrap the newly added fop_flags fields to not go over 80 characters.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240423124608.537794-2-hch@lst.de


Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>