Since GOTOFF relocations against IFUNC symbols must go through PLT,
set PLT reference count to 1 for GOTOFF relocation.
bfd/
PR ld/27998
* elfxx-x86.c (elf_x86_allocate_dynrelocs): Count PLT for GOTOFF
relocation against IFUNC symbols.
(_bfd_x86_elf_adjust_dynamic_symbol): Likewise.
ld/
PR ld/27998
* testsuite/ld-i386/i386.exp: Run PR ld/27998 tests.
* testsuite/ld-i386/pr27998a.d: New file.
* testsuite/ld-i386/pr27998a.s: Likewise.
* testsuite/ld-i386/pr27998b.d: Likewise.
* testsuite/ld-i386/pr27998b.s: Likewise.
