Revert "binutils: Fix PPC bootstrap build."

This reverts commit bf1b5855abed60bd6361e696121fa71c89d21469.

* mmu_man pointed out that the fix in bug #16686 is more
  correct. (and on closer inspection I agree)
* sorry for the spam
binutils: fix missing stdint in binutils bdf

* Fixes issue compiling PPC binutils
* Upstream commit 3c865fca8 by Alan Modra
* Missing a stdint.h in coff header for intptr_t usage
* PPC fix is upstream via:
  https://sourceware.org/bugzilla/show_bug.cgi?id=16686