Fix StSound getting stuck loading some songs

The loading of YM files has changed in the recent version of StSound and
it seems to cause issue when loading some songs, going into an infinite
loop. Restore the previous Ymload code for now from the older version of
StSound.

stsound/StSound/StSoundLibrary/Ymload.cpp

@@ -144,7 +144,8 @@ unsigned char	*CYmMusic::depackFile(ymu32 checkOriginalSize)
 			return NULL;
 		}
 
-		pSrc = pBigMalloc + pHeader->size;
+		// pSrc = pBigMalloc + pHeader->size;
+		pSrc = pBigMalloc+sizeof(lzhHeader_t)+pHeader->name_lenght;
 		ymu32		packedSize = ReadLittleEndian32((ymu8*)&pHeader->packed);
 
 		pSrc += 2;		// skip CRC16