Add @SystemApi markers for the diagnostic API values in android.car.Car

Test: build
Change-Id: I5c9ea265047629dd4fdf880d3eb153cc45564529
Fixes: b/37542858
diff --git a/service/src/com/android/car/ICarImpl.java b/service/src/com/android/car/ICarImpl.java
index f23f10c..ec760c9 100644
--- a/service/src/com/android/car/ICarImpl.java
+++ b/service/src/com/android/car/ICarImpl.java
@@ -293,7 +293,7 @@
     @FutureFeature
     public static void assertAnyDiagnosticPermission(Context context) {
         assertAnyPermission(context,
-                Car.PERMISSION_CAR_DIAGNOSTIC_READ,
+                Car.PERMISSION_CAR_DIAGNOSTIC_READ_ALL,
                 Car.PERMISSION_CAR_DIAGNOSTIC_CLEAR);
     }