elfutils: disable lzma (and bzip2 for native)

elfutils: disable lzma (and bzip2 for native)

Fix some library dependency issues:
* Disable lzma as xz-native is unstated in DEPENDS
* Disable bzip2 for native as it is in ASSUME_PROVIDED and thus isn't
  available when elfutils-native is normally built, but if it gets
  rebuilt the link will be made; plus we don't need it.

(From OE-Core rev: 1634d736c55f767fe82a46bbb7f83c32006fece9)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>