fix(sunburst): not using visualMetaList if visualMap component is not imported
fix(sunburst): not using visualMetaList if visualMap component is not imported

fix and close #7575

chenfwind/echarts,100star/echarts,chenfwind/echarts,100star/echarts,ecomfe/echarts,apache/incubator-echarts,apache/incubator-echarts,ecomfe/echarts