Change acloud binary name from acloud to acloud-dev

To prevent the mess form prebuilt and local build, from now on, m acloud will
create acloud-dev binary.

Bug: 130031121
Test: $m acloud
Check the binary file name is "acloud-dev".

Change-Id: I23e9c740a5c585ff7c2e6cd049a145a65ff69997
diff --git a/Android.bp b/Android.bp
index 41c2390..65b7b79 100644
--- a/Android.bp
+++ b/Android.bp
@@ -29,6 +29,8 @@
 
 python_binary_host {
     name: "acloud",
+    // Make acloud's built name to acloud-dev
+    stem: "acloud-dev",
     defaults: ["acloud_default"],
     main: "public/acloud_main.py",
     srcs: [