Revert "riff: remove references to sonic codec ids"

This reverts commit 0fd88d3988.

Theres no reason to drop support for this.

libavformat/riff.c

@@ -338,6 +338,8 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { CODEC_ID_AAC_LATM,        0x1602 },
     { CODEC_ID_AC3,             0x2000 },
     { CODEC_ID_DTS,             0x2001 },
+    { CODEC_ID_SONIC,           0x2048 },
+    { CODEC_ID_SONIC_LS,        0x2048 },
     { CODEC_ID_PCM_MULAW,       0x6c75 },
     { CODEC_ID_AAC,             0x706d },
     { CODEC_ID_AAC,             0x4143 },