Fix a bug that BUILD_VERSION_TAGS is ignored

Bug: 349046347
Test: set BUILD_VERSION_TAGS and build
Change-Id: Ica1c8283ec530147e744613692a3daccf7f94a4a
diff --git a/core/soong_extra_config.mk b/core/soong_extra_config.mk
index 420a509..82d1b15 100644
--- a/core/soong_extra_config.mk
+++ b/core/soong_extra_config.mk
@@ -86,6 +86,8 @@
 $(call add_json_str, VendorSecurityPatch,       $(VENDOR_SECURITY_PATCH))
 $(call add_json_str, VendorImageFileSystemType, $(BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE))
 
+$(call add_json_list, BuildVersionTags, $(BUILD_VERSION_TAGS))
+
 $(call json_end)
 
 $(shell mkdir -p $(dir $(SOONG_EXTRA_VARIABLES)))