[oe] mdev.sh: permit serial console login and permit correct runlevel

[Phil Blundell]

On Tue, 2009-07-14 at 16:42 -0700, Tom Rini wrote:
> To follow up to myself, the 'mdev' package should just go away really.
> This particular bug is because 'mdev' has an empty mdev.conf while
> busybox's mdev does not, and it contains console/null/etc entries.

Ah yes, right.  It looks like the immediate bug is that micro-base-image
is setting IMAGE_DEV_MANAGER = "mdev", which is causing the bogus
package to get dragged in.  I guess that variable should probably just
be left empty to use busybox mdev.

p.