修复埋点参数问题。review by 孙凯。

@@ -123,7 +123,7 @@ export default class SingleImage extends React.Component {
                             >
                                 <Image source={require('../../image/KA_dian.png')} style={styles.icon} resizeMode={'contain'}></Image>
                                 <TouchableOpacity  activeOpacity={0.5} onPress={() => {
-                                    let pos_id = 101;
+                                    let pos_id = 102;
                                     this.props.onPressProduct && this.props.onPressProduct(value.product_skn,i,pos_id);
                                 }}>
                                     <View style={styles.tagView}>