forked from Imagelibrary/rtems
control function. The IO control handler takes now the disk device as
first parameter instead of the physical device number.
* cpukit/libblock/include/rtems/blkdev.h, libblock/src/bdbuf.c,
libblock/src/blkdev.c, libblock/src/diskdevs.c, libblock/src/nvdisk.c,
libblock/src/flashdisk.c, libblock/src/ramdisk.c: Update for block
device API change.