ide: use 'drive->dn & 1' instead of drive->select.b.unit

* Call ide_port_init_devices() in ide_host_register()
  also if 'struct ide_port_info *d' is not available.

* Init drive->dn in ide_port_init_devices() instead of
  ide_probe_port() so it is valid also in ->init_dev.

* Pass device number to ide_dev_apply_params().

* Use 'drive->dn & 1' instead of drive->select.b.unit.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

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

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

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

diff --cc drivers/ide/legacy/ali14xx.c
Simple merge

diff --cc drivers/ide/legacy/qd65xx.c
Simple merge

diff --cc drivers/ide/pci/aec62xx.c
Simple merge

diff --cc drivers/ide/pci/alim15x3.c
Simple merge

diff --cc drivers/ide/pci/cmd640.c
Simple merge

diff --cc drivers/ide/pci/cs5535.c
Simple merge

diff --cc drivers/ide/pci/cy82c693.c
Simple merge

diff --cc drivers/ide/pci/it821x.c
Simple merge

diff --cc drivers/ide/pci/ns87415.c
Simple merge

diff --cc drivers/ide/pci/opti621.c
Simple merge

diff --cc drivers/ide/pci/sc1200.c
Simple merge

diff --cc drivers/ide/pci/scc_pata.c
Simple merge

diff --cc drivers/ide/pci/serverworks.c
Simple merge

diff --cc drivers/ide/pci/siimage.c
Simple merge

diff --cc drivers/ide/pci/triflex.c
Simple merge

diff --cc drivers/ide/ppc/pmac.c
Simple merge