chore: cherry-pick 763d847f1e5a from webrtc

[ppontes]

[M102] Do not allow simulcast to be turned off using SDP munging

This is an error that puts the PC into an inconsistent state, so
causing a crash is the right thing to do.

(cherry picked from commit 3fe8b0d9a980642ee5ebb1f9e429378b063c1f07)
TBR=hta@webrtc.org

Bug: chromium:1341043
Change-Id: Ie1eb89400ad87f0c83634b7073236b07e92ec7ab
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267281
Reviewed-by: Mirko Bonadei mbonadei@webrtc.org
Reviewed-by: Henrik Boström hbos@webrtc.org
Commit-Queue: Harald Alvestrand hta@webrtc.org
Cr-Original-Commit-Position: refs/heads/main@{#37391}
No-Presubmit: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267427
Commit-Queue: Taylor Brandstetter deadbeef@webrtc.org
Reviewed-by: Guido Urdaneta guidou@webrtc.org
Reviewed-by: Taylor Brandstetter deadbeef@webrtc.org
Cr-Commit-Position: refs/branch-heads/5005@{#9}
Cr-Branched-From: 8f9b44ba38c134e1c69126196e4d9e566ca5d5e3-refs/heads/main@{#36552}

Notes: Backported fix for CVE-2022-2294.

[release-clerk]

Release Notes Persisted

Backported fix for CVE-2022-2294.