AIDL effect: Initial IEffect interface implementation and vts test

Bug: 238913361
Test: atest VtsHalAudioEffectTargetTest
Merged-In: Id64d28af9122e82acd96e3349cf37c3d9728069a
Change-Id: Id64d28af9122e82acd96e3349cf37c3d9728069a
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 8947977..5f5f95d 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -16,7 +16,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="hidl" optional="false">
+    <hal format="hidl" optional="true">
         <name>android.hardware.audio.effect</name>
         <version>6.0</version>
         <version>7.0</version>
@@ -37,7 +37,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="aidl" optional="false">
+    <hal format="aidl" optional="true">
         <name>android.hardware.audio.effect</name>
         <version>1</version>
         <interface>