Consolidate testing for input changes

Make sure a consistent and comprehensive set of tests run when parts of
the input pipeline are changed.

Bug: 231623960
Test: presubmit
Change-Id: I08cd9966d436d21694e26b81aaf9c141cea47595

core/java/android/hardware/input/TEST_MAPPING

@@ -0,0 +1,7 @@
+{
+  "imports": [
+    {
+      "path": "frameworks/native/services/inputflinger"
+    }
+  ]
+}

libs/input/TEST_MAPPING

@@ -1,7 +1,7 @@
 {
-    "presubmit": [
-        {
-            "name": "libinputservice_test"
-        }
-    ]
+  "imports": [
+    {
+      "path": "frameworks/native/services/inputflinger"
+    }
+  ]
 }

services/core/java/com/android/server/input/TEST_MAPPING

@@ -0,0 +1,7 @@
+{
+  "imports": [
+    {
+      "path": "frameworks/native/services/inputflinger"
+    }
+  ]
+}