[Opus] Update to v1.2.1

third_party/opus/src/celt/modes.c

 /* Copyright (c) 2007-2008 CSIRO
    Copyright (c) 2007-2009 Xiph.Org Foundation
    Copyright (c) 2008 Gregory Maxwell
    Written by Jean-Marc Valin and Gregory Maxwell */
 /*
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    - Redistributions of source code must retain the above copyright
@@ skipping 409 matching lines @@
      for (i=0;i<TOTAL_MODES;i++)
      {
         if (mode == static_mode_list[i])
         {
            return;
         }
      }
    }
 #endif /* CUSTOM_MODES_ONLY */
    opus_free((opus_int16*)mode->eBands);
-   opus_free((opus_int16*)mode->allocVectors);
+   opus_free((unsigned char*)mode->allocVectors);
 
    opus_free((opus_val16*)mode->window);
    opus_free((opus_int16*)mode->logN);
 
    opus_free((opus_int16*)mode->cache.index);
    opus_free((unsigned char*)mode->cache.bits);
    opus_free((unsigned char*)mode->cache.caps);
    clt_mdct_clear(&mode->mdct, arch);
 
    opus_free((CELTMode *)mode);
 }
 #endif