PresetReverb: Add AIDL placeholder implementation and vts test

Bug: 258124419
Test: atest VtsHalPresetReverbTargetTest

Change-Id: Iea7b325e475be8093cb3fc7c242068f95c6dad5d
diff --git a/audio/aidl/TEST_MAPPING b/audio/aidl/TEST_MAPPING
index bf86d01..3604cf5 100644
--- a/audio/aidl/TEST_MAPPING
+++ b/audio/aidl/TEST_MAPPING
@@ -25,6 +25,9 @@
       "name": "VtsHalLoudnessEnhancerTargetTest"
     },
     {
+      "name": "VtsHalPresetReverbTargetTest"
+    },
+    {
       "name": "VtsHalVirtualizerTargetTest"
     },
     {