Add test that makes fd_server use of fs-verity ioctl

Although we're only using fd_server to read Merkle tree from .fsv_meta
currently, fd_server actually supports reading the tree from a fs-verity
protected file using ioctl.

This change adds a test case for that, by configuring fd_server with
`--ro-fds 3` instead of something like `--ro-fds 3:4` where 4 is the
alternative fs-verity metadata source (.fsv_meta).

Also removed an obsolete TODO.

Bug: 183749054
Test: atest AuthFsHostTest

Change-Id: Ib633d8792048ac17c5f84fd987aa09ff538cf29d
diff --git a/authfs/tests/Android.bp b/authfs/tests/Android.bp
index 72685ad..b662bee 100644
--- a/authfs/tests/Android.bp
+++ b/authfs/tests/Android.bp
@@ -14,11 +14,14 @@
         "MicrodroidHostTestHelper",
     ],
     test_suites: ["general-tests"],
-    //TODO(b/235263148) use data_device_bins_64
-    data_device_bins_first: ["open_then_run"],
+    data_device_bins_first: [
+        "open_then_run",
+        "fsverity",
+    ],
     per_testcase_directory: true,
     data: [
         ":authfs_test_files",
+        ":CtsApkVerityTestPrebuiltFiles",
         ":MicrodroidTestApp",
     ],
 }