Build microdroid-vbmeta and -vbmeta_system

Bug: 180676957
Test: m microdroid-vbmeta microdroid-vbmeta_system
avbtool info_image --image <built_image>

Test: atest MicrodroidHostTestCases

Change-Id: Ifa3dae5080e68faca921b7817db98548727eefc4
diff --git a/tests/hostside/Android.bp b/tests/hostside/Android.bp
index e07459a..c030e8d 100644
--- a/tests/hostside/Android.bp
+++ b/tests/hostside/Android.bp
@@ -14,6 +14,8 @@
         ":microdroid_uboot_env",
         ":cuttlefish_crosvm_bootloader",
         ":MicrodroidHostTestCase_EmptyImage",
+        ":microdroid_vbmeta",
+        ":microdroid_vbmeta_system",
     ],
 }
 
diff --git a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
index 7a45a8c..10c89ab 100644
--- a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
+++ b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
@@ -75,8 +75,8 @@
         pushFile("microdroid_vendor_boot-5.10.img", "vendor_boot.img");
         pushFile("uboot_env.img", "cuttlefish_runtime.1/uboot_env.img");
         pushFile("empty.img", "userdata.img");
-        pushFile("empty.img", "vbmeta.img");
-        pushFile("empty.img", "vbmeta_system.img");
+        pushFile("microdroid_vbmeta.img", "vbmeta.img");
+        pushFile("microdroid_vbmeta_system.img", "vbmeta_system.img");
         pushFile("empty.img", "cache.img");
         getDevice().executeShellCommand("mkdir -p " + TEST_ROOT + "etc/cvd_config");
         getDevice().pushString("{}", TEST_ROOT + "etc/cvd_config/cvd_config_phone.json");