- second set of changes to bochs floppy support.
- second set of changes to bochs floppy support.

  * floppy command 'format track' implemented
  * read and write operations with MT=0 are working now
    (function 'increment_sector()' updated)
  * result code of floppy command 'get status' fixed
  * flag FS_MS_DIO is not set while the 'configure' floppy command is pending

dariaphoebe/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs,dbrashear/bochs