Don't treat .opd section specially when ELFv2

Fixes a gdb segfault if a section named .opd is found in ELFv2 binaries.

	* elf64-ppc.c (synthetic_opd): New static var.
	(compare_symbols): Don't treat symbols in .opd specially for ELFv2.
	(ppc64_elf_get_synthetic_symtab): Likewise.  Comment.
2 files changed