[stable] aboot - support recent kernels, fix build issues

[dann frazier <dannf@debian.org>]

etch's aboot doesn't permit booting recent 2.6 kernels. While
backporting a fix for this issue, I ran into a couple of other build
issues that prevent etch's aboot from being rebuilt properly.

The proposed patch for this update and more detailed explanations are
available here:
  http://lists.debian.org/debian-alpha/2008/05/msg00026.html

This package is currently orphaned, but the previous maintainer did
comment:
  http://lists.debian.org/debian-alpha/2008/05/msg00027.html

Other than the testing I mentioned above, I've also had successful test
reports from Bdale and Tim Cutts (on albeniz.d.o, iirc).

This is obviously a requirement for alpha support in etchnhalf since
2.6.24 adds the ELF header incompatability. (Though releasing w/o
alpha support is an option as well).

-- 
dann frazier