block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --cc drivers/block/nbd.c
Simple merge

diff --cc drivers/block/paride/pd.c
Simple merge

diff --cc drivers/block/sx8.c
Simple merge

diff --cc drivers/block/virtio_blk.c
Simple merge

diff --cc drivers/ide/ide-atapi.c
Simple merge

diff --cc drivers/ide/ide-cd.c
Simple merge

diff --cc drivers/ide/ide-cd_ioctl.c
Simple merge

diff --cc drivers/ide/ide-devsets.c
Simple merge

diff --cc drivers/ide/ide-eh.c
Simple merge

diff --cc drivers/ide/ide-floppy.c
Simple merge

diff --cc drivers/ide/ide-io.c
Simple merge

diff --cc drivers/ide/ide-ioctls.c
Simple merge

diff --cc drivers/ide/ide-park.c
Simple merge

diff --cc drivers/ide/ide-tape.c
Simple merge

diff --cc include/linux/blkdev.h
Simple merge