vibrator: Add 1.4 Tests to 'vts-core'

Test: Build
Change-Id: I288417d30158bdf8109bf58da7415681ce66c19c
Signed-off-by: Harpreet \"Eli\" Sangha <eliptus@google.com>
diff --git a/vibrator/1.4/vts/functional/Android.bp b/vibrator/1.4/vts/functional/Android.bp
index 4cdf3b6..202a824 100644
--- a/vibrator/1.4/vts/functional/Android.bp
+++ b/vibrator/1.4/vts/functional/Android.bp
@@ -25,6 +25,9 @@
         "android.hardware.vibrator@1.3",
         "android.hardware.vibrator@1.4",
     ],
-    test_suites: ["general-tests"],
+    test_suites: [
+        "general-tests",
+        "vts-core",
+    ],
 }