Use the same code in PayloadTypePicker as in Codec.Matches()
Bug: webrtc:360058654
Change-Id: I549ed24860648cfdb6a173a19773daf01db827b0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/365102
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43217}
