health@2.0: Add vts tests.

Test: compiles
Test: VtsHalHealthV2_0TargetTest \
--hal_service_instance=android.hardware.health@2.0::IHealth/backup

Bug: 62229583
Change-Id: I79150e1298ceddedea0825c591938cd194eeadb5
diff --git a/health/Android.bp b/health/Android.bp
index 2c931e5..ca89713 100644
--- a/health/Android.bp
+++ b/health/Android.bp
@@ -5,4 +5,5 @@
     "1.0/default/libhealthd",
     "1.0/vts/functional",
     "2.0",
+    "2.0/vts/functional",
 ]