[oe] Patch "Don't inherit siteinfo in base.bbclass" breaks SlugOS

[Mike Westerhof]

The following commit breaks SlugOS.  I apologize for starting a new
thread on this, but I am unable to find the original discussion on the
OE ml (but I probably missed it in the several hundred that piled up in
my inbox this week).

------------
commit a215c2f283476776567506c2e3f969c48f7e5e3d
Author: Chris Larson <chris_larson at mentor.com>
Date:   Tue Mar 9 16:54:57 2010 -0700

    Don't inherit siteinfo in base.bbclass

    Acked-by: Richard Purdie <rpurdie at linux.intel.com>
    Acked-by: Marcin Juszkiewicz <marcin at juszkiewicz.com.pl>
    Signed-off-by: Chris Larson <chris_larson at mentor.com>
------------

In a nutshell, the ixp4xx can run in either endianess, and SlugOS builds
both a BE and an LE image.  Removing "inherit siteinfo" from
base.bbclass causes parsing failures in every recipe.

As an example of the issue, consider this lines in
conf/distro/include/slugos.conf:

IMAGE_BASENAME = "${@['slugos${SITEINFO_ENDIANESS}',
'ucslugc'][bb.data.getVar('TARGET_OS', d, 1) == 'linux-uclibc']}"

and

DISTRO_NAME ?=
"INVALID-${SITEINFO_ENDIANESS}-${ARM_INSTRUCTION_SET}-${TARGET_OS}"

There may be other locations (such as recipes, etc) where this problem
may exist, these were just the two locations I found easily.

Any ideas how to address this?

-Mike (mwester)