Add methods to health HAL interface to report storage info

The methods will report device specific storage info.

Bug: 68388678
Test: vts-tradefed run vts -m VtsHalHealthV2_0
Change-Id: I76a15f36f271312d2b49141ee1d45118be101397
diff --git a/health/2.0/Android.bp b/health/2.0/Android.bp
index 1080df1..97704bf 100644
--- a/health/2.0/Android.bp
+++ b/health/2.0/Android.bp
@@ -17,6 +17,9 @@
     ],
     types: [
         "Result",
+        "DiskStats",
+        "StorageAttribute",
+        "StorageInfo",
     ],
     gen_java: true,
 }