Rename IMmd.doZramMaintenanceAsync()

doZramMaintenance() is renamed as doZramMaintenanceAsync() because we
add a new synchronous API to IMmd.

Bug: 375432472
Test: m

Change-Id: Ie4b8a019e592609534b8d55a21f50273c84ee301
diff --git a/services/core/java/com/android/server/ZramMaintenance.java b/services/core/java/com/android/server/ZramMaintenance.java
index cdb4812..f1e6e85 100644
--- a/services/core/java/com/android/server/ZramMaintenance.java
+++ b/services/core/java/com/android/server/ZramMaintenance.java
@@ -73,7 +73,7 @@
         if (binder != null) {
             IMmd mmd = IMmd.Stub.asInterface(binder);
             try {
-                mmd.doZramMaintenance();
+                mmd.doZramMaintenanceAsync();
             } catch (RemoteException e) {
                 Slog.e(TAG, "Failed to doZramMaintenance", e);
             }