Merge "SF: unsupported getLayerGenericMetadataKeys is not an error" into sc-dev

    std::vector<Hwc2::IComposerClient::LayerGenericMetadataKey> supportedMetadataKeyInfo;

    const auto error = mComposer->getLayerGenericMetadataKeys(&supportedMetadataKeyInfo);

    if (error != hardware::graphics::composer::V2_4::Error::NONE) {

        if (error != hardware::graphics::composer::V2_4::Error::UNSUPPORTED) {

            ALOGE("%s: %s failed: %s (%d)", __FUNCTION__, "getLayerGenericMetadataKeys",

                  toString(error).c_str(), static_cast<int32_t>(error));

        }

        return;

    }