hikey960: add super.img to update image

super.img was not included in the update image and
was therefore not visible to update tools

Test: the super.img is in the hikey960-img-eng.xxx.zip file

Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Change-Id: I1e025c7ac57f4b6c88333ab47065d018afe2f4ee
diff --git a/hikey960/BoardConfig.mk b/hikey960/BoardConfig.mk
index d17a5b9..939723b 100644
--- a/hikey960/BoardConfig.mk
+++ b/hikey960/BoardConfig.mk
@@ -59,5 +59,6 @@
 BOARD_SUPER_PARTITION_GROUPS := hikey960_dynamic_partitions
 BOARD_HIKEY960_DYNAMIC_PARTITIONS_PARTITION_LIST := system vendor system_ext product
 BOARD_HIKEY960_DYNAMIC_PARTITIONS_SIZE := 4915724288
+BOARD_SUPER_IMAGE_IN_UPDATE_PACKAGE := true
 
 TARGET_RECOVERY_FSTAB := device/linaro/hikey/hikey960/fstab.hikey960