Fix problem that build_target of instance name is always none.

Bug: 117590969
Test: m acloud && atest acloud_test &&
run $acloud create and check instance name should be like
"ins-454badf2-5062173-aosp-cf-x86-phone-userdebug"

Change-Id: I69ca02d8c2c9b77b123d82864b36889407e6dd80
diff --git a/public/actions/create_cuttlefish_action.py b/public/actions/create_cuttlefish_action.py
index 5c2eb2c..db48a43 100644
--- a/public/actions/create_cuttlefish_action.py
+++ b/public/actions/create_cuttlefish_action.py
@@ -92,7 +92,8 @@
         # Create host instances for cuttlefish device. Currently one host instance
         # has one cuttlefish device. In the future, these logics should be modified
         # to support multiple cuttlefish devices per host instance.
-        instance = self._compute_client.GenerateInstanceName(self._build_id)
+        instance = self._compute_client.GenerateInstanceName(
+            build_id=self._build_id, build_target=self._build_target)
 
         # Create an instance from Stable Host Image
         if self.RELEASE_BRANCH_SUFFIX in self._branch: