[iasl] (4 commits) ...iasl-signed-char.patch to fix PPC -Werror build

[Richard W.M. Jones]

Summary of changes:

  75314a4... Incorporated Debian patches for endian-cleanliness (*)
  d54e8b5... Forgot to bump Release. (*)
  7378b77... Merge branch 'f18'
  0793b93... iasl-signed-char.patch to fix PPC -Werror build

(*) This commit already existed in another branch; no separate mail sent