[IMPR] AudioProductStrategy: add getName hidden API

As volume group, being able to retrieve strategy name helps
clients (e.g. CarAudioService) to refer strategies by name.

Bug: 260298113
Test: build

Change-Id: I8c01f31d715c754f1449b75fa7c754fe61b04d4a
Merged-In: I8c01f31d715c754f1449b75fa7c754fe61b04d4a
Signed-off-by: François Gaffie <francois.gaffie@renault.com>

media/java/android/media/audiopolicy/AudioProductStrategy.java

@@ -233,6 +233,15 @@ public final class AudioProductStrategy implements Parcelable {
         return mId;
     }
 
+    /**
+     * @hide
+     * @return the product strategy ID (which is the generalisation of Car Audio Usage / legacy
+     *         routing_strategy linked to {@link AudioAttributes#getUsage()}).
+     */
+    @NonNull public String getName() {
+        return mName;
+    }
+
     /**
      * @hide
      * @return first {@link AudioAttributes} associated to this product strategy.