Keep old checksums for older version of opus

Bug: b/247070183
Change-Id: I9731ba64b9334bd51ae69f8468c987de7824a7b0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275764
Auto-Submit: Christoffer Jansson <jansson@webrtc.org>
Commit-Queue: Christoffer Jansson <jansson@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38112}

modules/audio_coding/acm2/audio_coding_module_unittest.cc

@@ -1250,10 +1250,14 @@ TEST_F(AcmSenderBitExactnessNewApi, OpusFromFormat_stereo_20ms_voip) {
       AudioEncoderOpus::MakeAudioEncoder(*config, 120), 120));
   const std::string audio_maybe_sse =
       "1010e60ad34cee73c939edaf563d0593"
+      "|c05b4523d4c3fad2bab96d2a56baa2d0"
       "|ca54661b220cc35239c6864ab858d29a";
+
   const std::string payload_maybe_sse =
       "ea48d94e43217793af9b7e15ece94e54"
+      "|bd93c492087093daf662cdd968f6cdda"
       "|eb0752ce1b6f2436fefc2e19bd084fb5";
+
   Run(audio_maybe_sse, payload_maybe_sse, /*expected_packets=*/50,
       /*expected_channels=*/test::AcmReceiveTestOldApi::kStereoOutput);
 }