Add mainline TEST_MAPPING to run S module on R base image

Bug: 169443762
Test: presubmit
Change-Id: Id22217964450c14b4ef09b76a4366e66191c347d
diff --git a/wifi/TEST_MAPPING b/wifi/TEST_MAPPING
index fde3a6a..8c51510 100644
--- a/wifi/TEST_MAPPING
+++ b/wifi/TEST_MAPPING
@@ -8,5 +8,18 @@
         }
       ]
     }
+  ],
+  "mainline-presubmit": [
+    {
+      "name": "FrameworksWifiApiTests[com.google.android.wifi.apex]"
+    },
+    {
+      "name": "CtsWifiTestCases[com.google.android.wifi.apex]",
+      "options": [
+        {
+          "exclude-annotation": "android.net.wifi.cts.VirtualDeviceNotSupported"
+        }
+      ]
+    }
   ]
 }