dtc: Reinstate full old-style reference-to-path for v0 dts files

[Josh Boyer]

On Fri, 7 Dec 2007 14:38:26 +1100
David Gibson <david at gibson.dropbear.id.au> wrote:

> Commit 7c44c2f9cb1cc2df7aacd13decfc4e64b73d1730 broke backwards
> compatibility more badly than I realised.  Contrary to what I thought
> there are in-kernel, in-use dts files which relied on
> references-to-path with paths including a comma, which no longer
> compile after that commit.

There won't be shortly.  I'm reworking them anyway.

josh