Added fuzz_config field in fuzzer plugins

Test: ./amrnb_dec_fuzzer
Test: ./amrwb_dec_fuzzer
Test: ./g711alaw_dec_fuzzer
Test: ./g711mlaw_dec_fuzzer
Test: ./mpeg4_dec_fuzzer
Test: ./h263_dec_fuzzer
Test: ./mp3_dec_fuzzer
Test: ./mp4_extractor_fuzzer
Test: ./wav_extractor_fuzzer
Test: ./mp3_extractor_fuzzer
Test: ./aac_extractor_fuzzer
Test: ./flac_extractor_fuzzer
Test: ./amr_extractor_fuzzer
Test: ./mkv_extractor_fuzzer
Test: ./ogg_extractor_fuzzer
Test: ./mpeg2ts_extractor_fuzzer
Test: ./mpeg2ps_extractor_fuzzer
Bug: 156871294

Change-Id: Iee9e26df512209fa4c67ef21d4144a552dd5fa04