Use fsverity metadata file for authfs

Instead of alternative signature and merkle tree, authfs will use
.fsv_meta files, which are installed to the system partition with
PRODUCT_SYSTEM_FSVERITY_GENERATE_METADATA Makefile.

Bug: 205987437
Test: atest ComposHostTestCases AuthFsTestCase
Test: run "atest ." inside authfs/tests
Change-Id: Ia9db78663e0e322c7a59305c67ac5b84716d8efe
diff --git a/authfs/fd_server/Android.bp b/authfs/fd_server/Android.bp
index 327df0d..9499cd2 100644
--- a/authfs/fd_server/Android.bp
+++ b/authfs/fd_server/Android.bp
@@ -9,6 +9,7 @@
         "authfs_aidl_interface-rust",
         "libandroid_logger",
         "libanyhow",
+        "libauthfs_fsverity_metadata",
         "libbinder_common",
         "libbinder_rpc_unstable_bindgen",
         "libbinder_rs",