Use apex_name as partition name when using mk_payload

Due to 4635b628a83fd184bb8a6b4be519f046bc75b85d, the test relying on
mk_payload is now failing. This fixes the test code to match with the
change.

Ideally, we might need to move away from mk_payload.

Bug: 230815422
Test: atest MicrodroidTestCase
Change-Id: Ib7f1e9f82ebdd352dd076843eb5dcd5726c27c89
diff --git a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
index 32bdf3b..1c19627 100644
--- a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
+++ b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
@@ -263,8 +263,8 @@
         // - apk and idsig
         disks.put(new JSONObject().put("writable", false).put("partitions", new JSONArray()
                 .put(newPartition("payload-metadata", payloadMetadataPath))
-                .put(newPartition("microdroid-apex-0", statsdApexPath))
-                .put(newPartition("microdroid-apex-1", adbdApexPath))
+                .put(newPartition("com.android.os.statsd", statsdApexPath))
+                .put(newPartition("com.android.adbd", adbdApexPath))
                 .put(newPartition("microdroid-apk", apkPath))
                 .put(newPartition("microdroid-apk-idsig", idSigPath))));