Store/Pass root digests of APEX payload

Root digests of APEX payload are now collected by microdroid_manager and
stored in instance.img and passed to apexd.

Bug: 199371341
Test: MicrodroidHostTestCases
Change-Id: I940347068400822f7d8140c3daf68036f553b087
diff --git a/microdroid_manager/Android.bp b/microdroid_manager/Android.bp
index 9957689..721f9fa 100644
--- a/microdroid_manager/Android.bp
+++ b/microdroid_manager/Android.bp
@@ -13,6 +13,7 @@
         "android.system.virtualmachineservice-rust",
         "libanyhow",
         "libapkverify",
+        "libavb_bindgen",
         "libbinder_rpc_unstable_bindgen",
         "libbinder_rs",
         "libbyteorder",
@@ -63,4 +64,5 @@
             enabled: false,
         },
     },
+    data: ["tests/data/*"],
 }