2.31 check-gas regressions: i386 AVX512F insns et al

[Roland McGrath via binutils]

Something in the last two days or so has made the 2.31 branch
configured for --target=x86_64-elf start getting:

FAIL: i386 AVX512F insns
FAIL: i386 AVX512 lig256 insns
FAIL: i386 AVX512 lig512 insns
FAIL: x86_64 AVX512F insns
FAIL: x86_64 AVX512 lig256 insns
FAIL: x86_64 AVX512 lig512 insns

in check-gas.

I haven't bisected it but the only candidates are HJ's last three changes.

Can you fix or revert those?


Thanks,
Roland