Create InputManager TEST_MAPPING with WindowInputTests

CL ag/12660805 broke tests and had to be reverted because its local base
didn't include a change in the tests that happened in ToT (ag/12556011).
Addint test to presubmit of InputManager to catch these.

Test: 1. In frameworks/native/services/inputflinger, run:
         atest --test-mapping --dry-run
      2. Verify output contains WindowInputTests
Bug: 158002302
Change-Id: I1a8e97c5fbec771f44d3a30aad2870a046a960bb
diff --git a/services/inputflinger/TEST_MAPPING b/services/inputflinger/TEST_MAPPING
new file mode 100644
index 0000000..824c01e
--- /dev/null
+++ b/services/inputflinger/TEST_MAPPING
@@ -0,0 +1,12 @@
+{
+  "presubmit": [
+    {
+      "name": "CtsWindowManagerDeviceTestCases",
+      "options": [
+        {
+          "include-filter": "android.server.wm.WindowInputTests"
+        }
+      ]
+    }
+  ]
+}