Add android.hardware.health@2.0 HAL

Test: mma
Bug: 62229583

Change-Id: Icc5159424cf2623588a2f2acc7db5ff5bd7eeae8
diff --git a/health/Android.bp b/health/Android.bp
index 33f70eb..31e042a 100644
--- a/health/Android.bp
+++ b/health/Android.bp
@@ -2,4 +2,5 @@
 subdirs = [
     "1.0",
     "1.0/vts/functional",
+    "2.0",
 ]