binutils: stable 2.38 branch updates

Below commits on Binutils-2.38 development branch are updated.
5c0b4ee4060 i386: Don't allow GOTOFF relocation against IFUNC symbol for PIC
19892fedb7b x86: Properly check invalid relocation against protected symbol
b8a2baa80b1 libctf: tests: prune warnings from compiler output
7f9a495a167 libctf: fix linking together multiple objects derived from the same source
97dd8079feb PowerPC64: fix assertion in ppc_build_one_stub with -Os code

Signed-off-by: Sundeep KOKKONDA <sundeep.kokkonda@gmail.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>