Add code to support the apply_relocate_add() function, needed to
support all relocation types of the m68k and Coldfire families.
This code is straight out of the m68k support for this.

Patch was originally from Christian Magnusson
<christian.magnusson@runaware.com>
Signed-off-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>