orangefs: use inode_update_timestamps directly

orangefs: use inode_update_timestamps directly

Orangefs has no i_version handling and __orangefs_setattr already
explicitly marks the inode dirty.  So instead of the using
the flags return value from generic_update_time, just call the
lower level inode_update_timestamps helper directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20251120064859.2911749-7-hch@lst.de
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>