cryptohome: add fido.proto to build target

This CL adds fido.proto to cryptohome lib ebuild.

BUG=b:143770026
TEST=emerge-{$BOARD} cryptohome

Change-Id: Ice3fd459b3a54fe7f70e4abe2230c6df5cb6a8be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2233740
Tested-by: Xiaoyong Zhou <xzhou@chromium.org>
Reviewed-by: Mattias Nissler <mnissler@chromium.org>
Reviewed-by: Andrey Pronin <apronin@chromium.org>
Commit-Queue: Xiaoyong Zhou <xzhou@chromium.org>
diff --git a/cryptohome/libs/BUILD.gn b/cryptohome/libs/BUILD.gn
index fe5fe5a..eea010f 100644
--- a/cryptohome/libs/BUILD.gn
+++ b/cryptohome/libs/BUILD.gn
@@ -29,10 +29,11 @@
   policy_proto_path = "${sysroot}/usr/include/proto"
   script = "external_proto_generator.py"
   inputs = [
+    "${dbus_proto_path}/fido.proto",
     "${dbus_proto_path}/key.proto",
     "${dbus_proto_path}/rpc.proto",
-    "${dbus_proto_path}/UserDataAuth.proto",
     "${dbus_proto_path}/signed_secret.proto",
+    "${dbus_proto_path}/UserDataAuth.proto",
     "${policy_proto_path}/install_attributes.proto",
   ]
   outputs =