avcodec/utils: correct align value for interplay

Fixes out of array access
Fixes: 452/fuzz-1-ffmpeg_VIDEO_AV_CODEC_ID_INTERPLAY_VIDEO_fuzzer

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
{
    const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
    const AVProfile *p;

    if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
        return NULL;

    for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
        if (p->profile == profile)
            return p->name;

    return NULL;
}

const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
{
    const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
    const AVProfile *p;

    if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
        return NULL;

    for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
        if (p->profile == profile)
            return p->name;

    return NULL;
}
