Changes:
	Cleaned a few printk's

	Removed a meaningless ifndef.

	Moved md= name_to_ kdev_t() processing from md_setup() to
	md_setup_drive. Rewrote it and added devfs_find_handle() call
	to support devfs names for md=. 

The devfs_find_handle() code is now redundant in my patch and
fs/super.c::mount_root(). It probably should be moved directly into
name_to_kdev_t(), no? If this was done the md= code would have worked as is,
except for the devfs code choking on the trailing ',' in the device_names
list. (Richard, want to check for this in the future?)

This diff is against md.c in 2.4.4.
Comments/testing please.

Thanks to Neil Brown for the recommendation...