Lights: parameterized VTS tests.

Bug: 139437880
Test: run VtsHalLightV2_0TargetTest as gtest
Change-Id: I43e8f43583e0ad5fc560c3ee2129305396751e29
diff --git a/Android.bp b/Android.bp
index 927e227..2895b61 100644
--- a/Android.bp
+++ b/Android.bp
@@ -24,6 +24,11 @@
         "VtsHalHidlTargetTestBase",
         "libhidl-gen-utils",
     ],
+
+    header_libs: [
+        "libhidl_gtest_helpers",
+    ],
+
     group_static_libs: true,
 
     // Lists all system dependencies that can be expected on the device.