Add bound checks to utf16_to_utf8

            // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it

            size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ?

                    AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize;

            utf16_to_utf8(tags.string(), tagSize, attributes->tags);

            utf16_to_utf8(tags.string(), tagSize, attributes->tags,

                    sizeof(attributes->tags) / sizeof(attributes->tags[0]));

        }

    } else {

        ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values");