Move VM callback to vmclient

Instead of having clients directly register a callback with VS,
implement a Rust level callback interface in vmclient. This saves an
extra binder call on each notification, a bunch of boilerplate code,
and allows us to provide a slightly better interface (e.g. we can use
the Rust DeathReason enum, as elsewhere in vmclient, for instantly
better logging).

I also replaced all our usages of <some_interface>::binder::{...} with
direct access to binder::{...}. That makes it clearer what depends on
the interface itself and what is just generic binder code. I realise
this should be a separate change, but I only realised that after doing
bits of both.

Test: composd_cmd test-compile, observe logs (on both success & failure)
Test: atest -b (to make sure all our tests build)
Test: Presubmits
Change-Id: Iceda8d7b8f8008f9d7a2c51106c2794f09bb378e
diff --git a/compos/composd/src/odrefresh_task.rs b/compos/composd/src/odrefresh_task.rs
index 8fd574c..100fc50 100644
--- a/compos/composd/src/odrefresh_task.rs
+++ b/compos/composd/src/odrefresh_task.rs
@@ -22,8 +22,8 @@
     ICompilationTask::ICompilationTask,
     ICompilationTaskCallback::{FailureReason::FailureReason, ICompilationTaskCallback},
 };
-use android_system_composd::binder::{Interface, Result as BinderResult, Strong};
 use anyhow::{Context, Result};
+use binder::{Interface, Result as BinderResult, Strong};
 use compos_aidl_interface::aidl::com::android::compos::ICompOsService::{
     CompilationMode::CompilationMode, ICompOsService,
 };