[coreboot] buildrom: cleanup package includes (updated)

[Myles Watson]

> 
> Its a good thing I waited - I had a misspelling in coreboot-v2.mk
> (PLAFORM_GEODE).  I fixed that, and the Geode platforms still failed,
> but at least this time they failed because of size.
> 
> So, for the record, the following platforms have kernel configs that are
> too big (or don't have an accomodating Config.lb):
> 
> dbe61
> db800
> ga-m57sli-s4
> serengeti-cheetah
> norwich
> msm800sev
> alix1c
> s2892
> s2881
> s2882

The Tyan boards should all work with 64-bit.  That kernel is quite a bit
smaller.

Thanks,
Myles

> The following platforms have no kernel.mk:
> 
> a8v-e-se
> s-c-fam10
> ga-2761gxdk
> 
> And the following platforms build a kernel successfully:
> 
> h8dmr
> qemu
> s2891
> s2895
> 
> All platforms successfully built FILO and coreinfo.  I haven't yet added
> any of the other payloads to the test.
> 
> Jordan