Stable backports for 1.43.1

[cuviper]

• Update openssl-src to 1.1.1g Update openssl-src to 1.1.1g #71430
• Update stdarch submodule Update stdarch submodule #71495

r? @Mark-Simulacrum

[rust-highfive]

⚠️ Warning ⚠️

• Pull requests are usually filed against the master branch for this repo, but this one is against stable. Please double check that you specified the right target!
• These commits modify submodules.

[cuviper]

@Amanieu -- using the same stdarch commit as #71495 brings a few other things to stable too, which had only reached beta so far. I was able to shim llvm_asm! to plain asm!, but please review whether the rest is safe for stable backport. Otherwise, we'll need a separate stdarch branch to use here.

[Amanieu]

The other commits only affect ARM instrinsics which are all unstable. So I think it should be safe to backport.

[Mark-Simulacrum]

I agree that the stdarch backport seems fine as-is.

I'm going to hold off on approving until Sunday to give some time for feedback (in case someone thinks of something else to include).

[Mark-Simulacrum]

@sfackler nominated rust-lang/cargo#8151 (PR: rust-lang/cargo#8175) for backport as well, which is waiting on Cargo team approval.

[cuviper]

OK, this PR should be open to maintainer pushes, if you want to add that.

[Mark-Simulacrum]

Yeah, I'd like someone from cargo team to sign off and then I'll do so before approving.

[Mark-Simulacrum]

Closing in favor of #71868, wasn't able to push to this branch for whatever reason.