Add Unit Tests For Hostapd AIDL

This should allow for testing hostapd AIDL implementation code

Bug: 361651437
Test: libhostapd_aidl_bp_unittest
Change-Id: If67b84ba4a2753b43987b2d79833c9616df73cf9
diff --git a/TEST_MAPPING b/TEST_MAPPING
new file mode 100644
index 0000000..e9ea3dd
--- /dev/null
+++ b/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+    "postsubmit": [
+        {
+            "name": "libhostapd_aidl_bp_unittest"
+        }
+    ]
+}