Commit: Fix the generation of relocs for missing build notes
I am applying the patch below to fix a couple of bugs in the
generation of relocations for missing build notes. The first was the
assumption that the BFD library would ignore the addend field of REL
relocs, when in fact it processes it. The second was the fact that
the code assumed that the addend would fit into 8-bits, when in fact
this is not always the case.