[OE-core] Chaining compression support fixes for morty / pyro

[akuster808]

On 07/31/2017 06:59 AM, Tom Rini wrote:
> Hi Armin,
>
> The following changes in master are relevant to both morty and pyro:

In stagging for morty. will do pyro shortly.
>
> commit 0a7ce0b971a208956cb895ba5a869ec8c5d94703
> Author: Tom Rini <trini at konsulko.com>
> Date:   Fri Jul 21 18:06:33 2017 -0400
>
>      image.bbclass: Correct chaining compression support

Needed a little fixup

thanks,
Armin
>
> commit 98a2afeb3a53bec7a72a4a9846e1dba636cc6f3d
> Author: Tom Rini <trini at konsulko.com>
> Date:   Tue Jul 25 15:58:09 2017 -0400
>
>      image: Fix "metadata is not deterministic" when chaining 2+ CONVERSION_CMDs
>
> And fix the problem where you cannot make arbitrary combinations of say
> "ext4", "u-boot" and "xz" images.  In the interest of full disclosure,
> it is entirely possible that there are image types introduces in other
> layers that have the same problem that the "u-boot" type had which lead
> to 46bc438374de being done in the first place, which is to say a new
> IMAGE_CMD that also cleaned up the intermediate files on its own.  This
> may make this too risky to pull into stable branches and that's fine.
> Thanks for your consideration!
>