[0/2] Tests and corrections for asm output and value labels

[Jon Loeliger]

> Another resend of patches from a while back.  This series adds a bunch
> of tests for dtc's -Oasm mode, and corrects various problems found
> thereby.  On top of that we add tests for proper handling of labels
> within property values (which currently only have an effect on the
> output in -Oasm mode).

Both applied.

Thanks,
jdl