Build keystore_cli_v2

Add back keystore_cli_v2 to the system image, which was missing after switching
to Android.bp. Ideally we should only build this for userdebug/eng builds.

Bug: 69351686
Test: builds
Change-Id: Id2cbc024af79b042e3d49913758cc39c4cf9f432
diff --git a/keystore/Android.bp b/keystore/Android.bp
index 42fcf8e..b58671c 100644
--- a/keystore/Android.bp
+++ b/keystore/Android.bp
@@ -69,6 +69,8 @@
             enabled: false,
         },
     },
+
+    required: ["keystore_cli_v2"],
 }
 
 cc_binary {