Add Super_image_in_update_package prop to super_image

This property will be used to generate misc_info.txt

Test: compared misc_info.txt of soong and make super.img
Bug: 399788100
Change-Id: I1354dffb37688414c2ecad22fcbde05fe08383e8
diff --git a/filesystem/super_image.go b/filesystem/super_image.go
index 74c7b65..5e62fa7 100644
--- a/filesystem/super_image.go
+++ b/filesystem/super_image.go
@@ -78,6 +78,8 @@
 		// specified we default to COW version 2 in update_engine for backwards compatibility
 		Cow_version *int64
 	}
+	// Whether the super image will be disted in the update package
+	Super_image_in_update_package *bool
 }
 
 type PartitionGroupsInfo struct {
@@ -304,6 +306,9 @@
 	if len(s.properties.Block_devices) > 0 {
 		addStr("super_block_devices", strings.Join(s.properties.Block_devices, " "))
 	}
+	if proptools.Bool(s.properties.Super_image_in_update_package) {
+		addStr("super_image_in_update_package", "true")
+	}
 	addStr("super_partition_size", strconv.Itoa(proptools.Int(s.properties.Size)))
 	// TODO: In make, there's more complicated logic than just this surrounding super_*_device_size
 	addStr("super_super_device_size", strconv.Itoa(proptools.Int(s.properties.Size)))