Add memtrack HAL APEX

Bug: 300011626
Test: VtsHalMemtrackTargetTest
Change-Id: Ibc4d8eda2264c19173dee4165ebd977257b3f3d5
diff --git a/memtrack/aidl/default/apex_manifest.json b/memtrack/aidl/default/apex_manifest.json
new file mode 100644
index 0000000..16d195e
--- /dev/null
+++ b/memtrack/aidl/default/apex_manifest.json
@@ -0,0 +1,4 @@
+{
+    "name": "com.android.hardware.memtrack",
+    "version": 1
+}
\ No newline at end of file