Reapply "Add super.img to android_device"

This reverts commit 4173c5bed6853af9a6ca44b1dcfafb6bb5848b43.

This resubmission moves the check that all partitions are specified
to execution time, because on aosp-main-future-without-vendor
BUILDING_VENDOR_IMAGE is false while
BOARD_GOOGLE_DYNAMIC_PARTITIONS_PARTITION_LIST still lists the vendor
partition.

Bug: 376727180
Test: Presubmits
Change-Id: I485574c98ba78f7eea3878135ff71fd6da94587e
diff --git a/fsgen/super_img.go b/fsgen/super_img.go
index a36f614..5994fb6 100644
--- a/fsgen/super_img.go
+++ b/fsgen/super_img.go
@@ -27,7 +27,7 @@
 	return partitionVars.ProductBuildSuperPartition
 }
 
-func createSuperImage(ctx android.LoadHookContext, partitions []string, partitionVars android.PartitionVariables) {
+func createSuperImage(ctx android.LoadHookContext, partitions []string, partitionVars android.PartitionVariables) []string {
 	baseProps := &struct {
 		Name *string
 	}{
@@ -59,34 +59,45 @@
 	}
 	superImageProps.Partition_groups = partitionGroupsInfo
 
+	var superImageSubpartitions []string
 	partitionNameProps := &filesystem.SuperImagePartitionNameProperties{}
 	if android.InList("system", partitions) {
 		partitionNameProps.System_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "system"))
+		superImageSubpartitions = append(superImageSubpartitions, "system")
 	}
 	if android.InList("system_ext", partitions) {
 		partitionNameProps.System_ext_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "system_ext"))
+		superImageSubpartitions = append(superImageSubpartitions, "system_ext")
 	}
 	if android.InList("system_dlkm", partitions) {
 		partitionNameProps.System_dlkm_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "system_dlkm"))
+		superImageSubpartitions = append(superImageSubpartitions, "system_dlkm")
 	}
 	if android.InList("system_other", partitions) {
 		partitionNameProps.System_other_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "system_other"))
+		superImageSubpartitions = append(superImageSubpartitions, "system_other")
 	}
 	if android.InList("product", partitions) {
 		partitionNameProps.Product_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "product"))
+		superImageSubpartitions = append(superImageSubpartitions, "product")
 	}
 	if android.InList("vendor", partitions) {
 		partitionNameProps.Vendor_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "vendor"))
+		superImageSubpartitions = append(superImageSubpartitions, "vendor")
 	}
 	if android.InList("vendor_dlkm", partitions) {
 		partitionNameProps.Vendor_dlkm_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "vendor_dlkm"))
+		superImageSubpartitions = append(superImageSubpartitions, "vendor_dlkm")
 	}
 	if android.InList("odm", partitions) {
 		partitionNameProps.Odm_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "odm"))
+		superImageSubpartitions = append(superImageSubpartitions, "odm")
 	}
 	if android.InList("odm_dlkm", partitions) {
 		partitionNameProps.Odm_dlkm_partition = proptools.StringPtr(generatedModuleNameForPartition(ctx.Config(), "odm_dlkm"))
+		superImageSubpartitions = append(superImageSubpartitions, "odm_dlkm")
 	}
 
 	ctx.CreateModule(filesystem.SuperImageFactory, baseProps, superImageProps, partitionNameProps)
+	return superImageSubpartitions
 }